Matrix Cain RE Touch-Up (#20719)

* add matrix_diagram.md

* info.json: apply friendly formatting

* info.json: correct layout data

* info.json: alias LAYOUT to LAYOUT_all

The PCB supports multiple layouts, but I have not been able to discover how the additional layouts are wired.

* update matrix_diagram.md (thanks yulei)

* add LAYOUT_2u_numpad_plus_enter_zero with reference keymap

3 files changed, 317 insertions, 124 deletions

diff --git a/keyboards/matrix/cain_re/info.json b/keyboards/matrix/cain_re/info.json
index f830c19d25..5b89ed83ef 100644
--- a/keyboards/matrix/cain_re/info.json
+++ b/keyboards/matrix/cain_re/info.json
@@ -18,133 +18,261 @@
     "diode_direction": "COL2ROW",
     "processor": "atmega32u4",
     "bootloader": "atmel-dfu",
+    "layout_aliases": {
+        "LAYOUT": "LAYOUT_all"
+    },
     "layouts": {
         "LAYOUT_all": {
             "layout": [
-                {"matrix": [0, 0], "x": 0, "y": 0},
-
-                {"matrix": [0, 1], "x": 2, "y": 0},
-                {"matrix": [0, 2], "x": 3, "y": 0},
-                {"matrix": [0, 3], "x": 4, "y": 0},
-                {"matrix": [0, 4], "x": 5, "y": 0},
-
-                {"matrix": [0, 5], "x": 6.5, "y": 0},
-                {"matrix": [0, 6], "x": 7.5, "y": 0},
-                {"matrix": [0, 7], "x": 8.5, "y": 0},
-                {"matrix": [0, 8], "x": 9.5, "y": 0},
-
-                {"matrix": [0, 9], "x": 11, "y": 0},
-                {"matrix": [0, 10], "x": 12, "y": 0},
-                {"matrix": [0, 11], "x": 13, "y": 0},
-                {"matrix": [5, 0], "x": 14, "y": 0},
-
-                {"matrix": [7, 0], "x": 20, "y": 0},
-                {"matrix": [7, 1], "x": 21, "y": 0},
-                {"matrix": [7, 2], "x": 22, "y": 0},
-
-                {"matrix": [1, 0], "x": 0, "y": 1.5},
-                {"matrix": [1, 1], "x": 1, "y": 1.5},
-                {"matrix": [1, 2], "x": 2, "y": 1.5},
-                {"matrix": [1, 3], "x": 3, "y": 1.5},
-                {"matrix": [1, 4], "x": 4, "y": 1.5},
-                {"matrix": [1, 5], "x": 5, "y": 1.5},
-                {"matrix": [1, 6], "x": 6, "y": 1.5},
-                {"matrix": [1, 7], "x": 7, "y": 1.5},
-                {"matrix": [1, 8], "x": 8, "y": 1.5},
-                {"matrix": [1, 9], "x": 9, "y": 1.5},
-                {"matrix": [1, 10], "x": 10, "y": 1.5},
-                {"matrix": [1, 11], "x": 11, "y": 1.5},
-                {"matrix": [5, 2], "x": 12, "y": 1.5},
-                {"matrix": [5, 1], "x": 13, "y": 1.5, "w": 2},
-
-                {"matrix": [6, 0], "x": 15.5, "y": 1.5},
-                {"matrix": [6, 1], "x": 16.5, "y": 1.5},
-                {"matrix": [6, 2], "x": 17.5, "y": 1.5},
-                {"matrix": [6, 3], "x": 18.5, "y": 1.5},
-
-                {"matrix": [7, 5], "x": 20, "y": 1.5},
-                {"matrix": [7, 4], "x": 21, "y": 1.5},
-                {"matrix": [7, 3], "x": 22, "y": 1.5},
-
-                {"matrix": [2, 0], "x": 0, "y": 2.5, "w": 1.5},
-                {"matrix": [2, 1], "x": 1.5, "y": 2.5},
-                {"matrix": [2, 2], "x": 2.5, "y": 2.5},
-                {"matrix": [2, 3], "x": 3.5, "y": 2.5},
-                {"matrix": [2, 4], "x": 4.5, "y": 2.5},
-                {"matrix": [2, 5], "x": 5.5, "y": 2.5},
-                {"matrix": [2, 6], "x": 6.5, "y": 2.5},
-                {"matrix": [2, 7], "x": 7.5, "y": 2.5},
-                {"matrix": [2, 8], "x": 8.5, "y": 2.5},
-                {"matrix": [2, 9], "x": 9.5, "y": 2.5},
-                {"matrix": [2, 10], "x": 10.5, "y": 2.5},
-                {"matrix": [2, 11], "x": 11.5, "y": 2.5},
-                {"matrix": [5, 3], "x": 12.5, "y": 2.5},
-                {"matrix": [5, 4], "x": 13.5, "y": 2.5, "w": 1.5},
-
-                {"matrix": [6, 7], "x": 15.5, "y": 2.5},
-                {"matrix": [6, 6], "x": 16.5, "y": 2.5},
-                {"matrix": [6, 5], "x": 17.5, "y": 2.5},
-                {"matrix": [6, 4], "x": 18.5, "y": 2.5},
-
-                {"matrix": [7, 6], "x": 20, "y": 2.5},
-                {"matrix": [7, 7], "x": 21, "y": 2.5},
-                {"matrix": [7, 8], "x": 22, "y": 2.5},
-
-                {"matrix": [3, 0], "x": 0, "y": 3.5, "w": 1.75},
-                {"matrix": [3, 1], "x": 1.75, "y": 3.5},
-                {"matrix": [3, 2], "x": 2.75, "y": 3.5},
-                {"matrix": [3, 3], "x": 3.75, "y": 3.5},
-                {"matrix": [3, 4], "x": 4.75, "y": 3.5},
-                {"matrix": [3, 5], "x": 5.75, "y": 3.5},
-                {"matrix": [3, 6], "x": 6.75, "y": 3.5},
-                {"matrix": [3, 7], "x": 7.75, "y": 3.5},
-                {"matrix": [3, 8], "x": 8.75, "y": 3.5},
-                {"matrix": [3, 9], "x": 9.75, "y": 3.5},
-                {"matrix": [3, 10], "x": 10.75, "y": 3.5},
-                {"matrix": [3, 11], "x": 11.75, "y": 3.5},
-                {"matrix": [5, 5], "x": 12.75, "y": 3.5, "w": 2.25},
-
-                {"matrix": [6, 8], "x": 15.5, "y": 3.5},
-                {"matrix": [6, 9], "x": 16.5, "y": 3.5},
-                {"matrix": [5, 11], "x": 17.5, "y": 3.5},
-                {"matrix": [5, 10], "x": 18.5, "y": 3.5},
-
-                {"matrix": [4, 0], "x": 0, "y": 4.5, "w": 2.25},
-                {"matrix": [4, 1], "x": 2.25, "y": 4.5},
-                {"matrix": [4, 2], "x": 3.25, "y": 4.5},
-                {"matrix": [4, 3], "x": 4.25, "y": 4.5},
-                {"matrix": [4, 4], "x": 5.25, "y": 4.5},
-                {"matrix": [4, 5], "x": 6.25, "y": 4.5},
-                {"matrix": [4, 6], "x": 7.25, "y": 4.5},
-                {"matrix": [4, 7], "x": 8.25, "y": 4.5},
-                {"matrix": [4, 8], "x": 9.25, "y": 4.5},
-                {"matrix": [4, 9], "x": 10.25, "y": 4.5},
-                {"matrix": [4, 10], "x": 11.25, "y": 4.5},
-                {"matrix": [4, 11], "x": 12.25, "y": 4.5, "w": 2.75},
-
-                {"matrix": [5, 6], "x": 15.5, "y": 4.5},
-                {"matrix": [5, 7], "x": 16.5, "y": 4.5},
-                {"matrix": [5, 8], "x": 17.5, "y": 4.5},
-                {"matrix": [5, 9], "x": 18.5, "y": 4.5},
-
-                {"matrix": [6, 10], "x": 21, "y": 4.5},
-
-                {"matrix": [8, 0], "x": 0, "y": 5.5, "w": 1.5},
-                {"matrix": [8, 1], "x": 1.5, "y": 5.5},
-                {"matrix": [8, 2], "x": 2.5, "y": 5.5, "w": 1.5},
-                {"matrix": [8, 3], "x": 4, "y": 5.5, "w": 7},
-                {"matrix": [8, 4], "x": 11, "y": 5.5, "w": 1.5},
-                {"matrix": [8, 5], "x": 12.5, "y": 5.5},
-                {"matrix": [8, 6], "x": 13.5, "y": 5.5, "w": 1.5},
-
-                {"matrix": [8, 7], "x": 15.5, "y": 5.5},
-                {"matrix": [8, 8], "x": 16.5, "y": 5.5},
-                {"matrix": [8, 9], "x": 17.5, "y": 5.5},
-                {"matrix": [8, 10], "x": 18.5, "y": 5.5},
-
-                {"matrix": [7, 9], "x": 20, "y": 5.5},
-                {"matrix": [7, 10], "x": 21, "y": 5.5},
-                {"matrix": [7, 11], "x": 22, "y": 5.5}
+                {"label": "Esc", "matrix": [0, 0], "x": 0, "y": 0},
+
+                {"label": "F1", "matrix": [0, 1], "x": 2, "y": 0},
+                {"label": "F2", "matrix": [0, 2], "x": 3, "y": 0},
+                {"label": "F3", "matrix": [0, 3], "x": 4, "y": 0},
+                {"label": "F4", "matrix": [0, 4], "x": 5, "y": 0},
+
+                {"label": "F5", "matrix": [0, 5], "x": 6.5, "y": 0},
+                {"label": "F6", "matrix": [0, 6], "x": 7.5, "y": 0},
+                {"label": "F7", "matrix": [0, 7], "x": 8.5, "y": 0},
+                {"label": "F8", "matrix": [0, 8], "x": 9.5, "y": 0},
+
+                {"label": "F9", "matrix": [0, 9], "x": 11, "y": 0},
+                {"label": "F10", "matrix": [0, 10], "x": 12, "y": 0},
+                {"label": "F11", "matrix": [0, 11], "x": 13, "y": 0},
+                {"label": "F12", "matrix": [5, 0], "x": 14, "y": 0},
+
+                {"label": "PrtSc", "matrix": [7, 0], "x": 19.5, "y": 0},
+                {"label": "Scroll Lock", "matrix": [7, 1], "x": 20.5, "y": 0},
+                {"label": "Pause", "matrix": [7, 2], "x": 21.5, "y": 0},
+
+                {"label": "`", "matrix": [1, 0], "x": 0, "y": 1.25},
+                {"label": "1", "matrix": [1, 1], "x": 1, "y": 1.25},
+                {"label": "2", "matrix": [1, 2], "x": 2, "y": 1.25},
+                {"label": "3", "matrix": [1, 3], "x": 3, "y": 1.25},
+                {"label": "4", "matrix": [1, 4], "x": 4, "y": 1.25},
+                {"label": "5", "matrix": [1, 5], "x": 5, "y": 1.25},
+                {"label": "6", "matrix": [1, 6], "x": 6, "y": 1.25},
+                {"label": "7", "matrix": [1, 7], "x": 7, "y": 1.25},
+                {"label": "8", "matrix": [1, 8], "x": 8, "y": 1.25},
+                {"label": "9", "matrix": [1, 9], "x": 9, "y": 1.25},
+                {"label": "0", "matrix": [1, 10], "x": 10, "y": 1.25},
+                {"label": "-", "matrix": [1, 11], "x": 11, "y": 1.25},
+                {"label": "=", "matrix": [5, 2], "x": 12, "y": 1.25},
+                {"label": "Backspace", "matrix": [5, 1], "x": 13, "y": 1.25, "w": 2},
+
+                {"label": "Num Lock", "matrix": [6, 0], "x": 15.25, "y": 1.25},
+                {"label": "/", "matrix": [6, 1], "x": 16.25, "y": 1.25},
+                {"label": "*", "matrix": [6, 2], "x": 17.25, "y": 1.25},
+                {"label": "-", "matrix": [6, 3], "x": 18.25, "y": 1.25},
+
+                {"label": "Insert", "matrix": [7, 5], "x": 19.5, "y": 1.25},
+                {"label": "Home", "matrix": [7, 4], "x": 20.5, "y": 1.25},
+                {"label": "Page Up", "matrix": [7, 3], "x": 21.5, "y": 1.25},
+
+                {"label": "Tab", "matrix": [2, 0], "x": 0, "y": 2.25, "w": 1.5},
+                {"label": "Q", "matrix": [2, 1], "x": 1.5, "y": 2.25},
+                {"label": "W", "matrix": [2, 2], "x": 2.5, "y": 2.25},
+                {"label": "E", "matrix": [2, 3], "x": 3.5, "y": 2.25},
+                {"label": "R", "matrix": [2, 4], "x": 4.5, "y": 2.25},
+                {"label": "T", "matrix": [2, 5], "x": 5.5, "y": 2.25},
+                {"label": "Y", "matrix": [2, 6], "x": 6.5, "y": 2.25},
+                {"label": "U", "matrix": [2, 7], "x": 7.5, "y": 2.25},
+                {"label": "I", "matrix": [2, 8], "x": 8.5, "y": 2.25},
+                {"label": "O", "matrix": [2, 9], "x": 9.5, "y": 2.25},
+                {"label": "P", "matrix": [2, 10], "x": 10.5, "y": 2.25},
+                {"label": "[", "matrix": [2, 11], "x": 11.5, "y": 2.25},
+                {"label": "]", "matrix": [5, 3], "x": 12.5, "y": 2.25},
+                {"label": "\\", "matrix": [5, 4], "x": 13.5, "y": 2.25, "w": 1.5},
+
+                {"label": "7", "matrix": [6, 7], "x": 15.25, "y": 2.25},
+                {"label": "8", "matrix": [6, 6], "x": 16.25, "y": 2.25},
+                {"label": "9", "matrix": [6, 5], "x": 17.25, "y": 2.25},
+                {"label": "+", "matrix": [6, 4], "x": 18.25, "y": 2.25},
+
+                {"label": "Delete", "matrix": [7, 6], "x": 19.5, "y": 2.25},
+                {"label": "End", "matrix": [7, 7], "x": 20.5, "y": 2.25},
+                {"label": "Page Down", "matrix": [7, 8], "x": 21.5, "y": 2.25},
+
+                {"label": "Caps Lock", "matrix": [3, 0], "x": 0, "y": 3.25, "w": 1.75},
+                {"label": "A", "matrix": [3, 1], "x": 1.75, "y": 3.25},
+                {"label": "S", "matrix": [3, 2], "x": 2.75, "y": 3.25},
+                {"label": "D", "matrix": [3, 3], "x": 3.75, "y": 3.25},
+                {"label": "F", "matrix": [3, 4], "x": 4.75, "y": 3.25},
+                {"label": "G", "matrix": [3, 5], "x": 5.75, "y": 3.25},
+                {"label": "H", "matrix": [3, 6], "x": 6.75, "y": 3.25},
+                {"label": "J", "matrix": [3, 7], "x": 7.75, "y": 3.25},
+                {"label": "K", "matrix": [3, 8], "x": 8.75, "y": 3.25},
+                {"label": "L", "matrix": [3, 9], "x": 9.75, "y": 3.25},
+                {"label": ";", "matrix": [3, 10], "x": 10.75, "y": 3.25},
+                {"label": "'", "matrix": [3, 11], "x": 11.75, "y": 3.25},
+                {"label": "Enter", "matrix": [5, 5], "x": 12.75, "y": 3.25, "w": 2.25},
+
+                {"label": "4", "matrix": [6, 8], "x": 15.25, "y": 3.25},
+                {"label": "5", "matrix": [6, 9], "x": 16.25, "y": 3.25},
+                {"label": "6", "matrix": [5, 11], "x": 17.25, "y": 3.25},
+                {"label": "+", "matrix": [5, 10], "x": 18.25, "y": 3.25},
+
+                {"label": "Shift", "matrix": [4, 0], "x": 0, "y": 4.25, "w": 2.25},
+                {"label": "Z", "matrix": [4, 1], "x": 2.25, "y": 4.25},
+                {"label": "X", "matrix": [4, 2], "x": 3.25, "y": 4.25},
+                {"label": "C", "matrix": [4, 3], "x": 4.25, "y": 4.25},
+                {"label": "V", "matrix": [4, 4], "x": 5.25, "y": 4.25},
+                {"label": "B", "matrix": [4, 5], "x": 6.25, "y": 4.25},
+                {"label": "N", "matrix": [4, 6], "x": 7.25, "y": 4.25},
+                {"label": "M", "matrix": [4, 7], "x": 8.25, "y": 4.25},
+                {"label": ",", "matrix": [4, 8], "x": 9.25, "y": 4.25},
+                {"label": ".", "matrix": [4, 9], "x": 10.25, "y": 4.25},
+                {"label": "/", "matrix": [4, 10], "x": 11.25, "y": 4.25},
+                {"label": "Shift", "matrix": [4, 11], "x": 12.25, "y": 4.25, "w": 2.75},
+
+                {"label": "1", "matrix": [5, 6], "x": 15.25, "y": 4.25},
+                {"label": "2", "matrix": [5, 7], "x": 16.25, "y": 4.25},
+                {"label": "3", "matrix": [5, 8], "x": 17.25, "y": 4.25},
+                {"label": "Enter", "matrix": [5, 9], "x": 18.25, "y": 4.25},
+
+                {"label": "\u2191", "matrix": [6, 10], "x": 20.5, "y": 4.25},
+
+                {"label": "Ctrl", "matrix": [8, 0], "x": 0, "y": 5.25, "w": 1.25},
+                {"label": "GUI", "matrix": [8, 1], "x": 1.875, "y": 5.25, "w": 1.25},
+                {"label": "Alt", "matrix": [8, 2], "x": 3.125, "y": 5.25, "w": 1.25},
+                {"label": "Space", "matrix": [8, 3], "x": 4.375, "y": 5.25, "w": 6.25},
+                {"label": "Alt", "matrix": [8, 4], "x": 10.625, "y": 5.25, "w": 1.25},
+                {"label": "Fn", "matrix": [8, 5], "x": 11.875, "y": 5.25, "w": 1.25},
+                {"label": "Ctrl", "matrix": [8, 6], "x": 13.75, "y": 5.25, "w": 1.25},
+
+                {"label": "0", "matrix": [8, 7], "x": 15.25, "y": 5.25},
+                {"label": "0", "matrix": [8, 8], "x": 16.25, "y": 5.25},
+                {"label": ".", "matrix": [8, 9], "x": 17.25, "y": 5.25},
+                {"label": "Enter", "matrix": [8, 10], "x": 18.25, "y": 5.25},
+
+                {"label": "\u2190", "matrix": [7, 9], "x": 19.5, "y": 5.25},
+                {"label": "\u2193", "matrix": [7, 10], "x": 20.5, "y": 5.25},
+                {"label": "\u2192", "matrix": [7, 11], "x": 21.5, "y": 5.25}
+            ]
+        },
+        "LAYOUT_2u_numpad_plus_enter_zero": {
+            "layout": [
+                {"label": "Esc", "matrix": [0, 0], "x": 0, "y": 0},
+
+                {"label": "F1", "matrix": [0, 1], "x": 2, "y": 0},
+                {"label": "F2", "matrix": [0, 2], "x": 3, "y": 0},
+                {"label": "F3", "matrix": [0, 3], "x": 4, "y": 0},
+                {"label": "F4", "matrix": [0, 4], "x": 5, "y": 0},
+
+                {"label": "F5", "matrix": [0, 5], "x": 6.5, "y": 0},
+                {"label": "F6", "matrix": [0, 6], "x": 7.5, "y": 0},
+                {"label": "F7", "matrix": [0, 7], "x": 8.5, "y": 0},
+                {"label": "F8", "matrix": [0, 8], "x": 9.5, "y": 0},
+
+                {"label": "F9", "matrix": [0, 9], "x": 11, "y": 0},
+                {"label": "F10", "matrix": [0, 10], "x": 12, "y": 0},
+                {"label": "F11", "matrix": [0, 11], "x": 13, "y": 0},
+                {"label": "F12", "matrix": [5, 0], "x": 14, "y": 0},
+
+                {"label": "PrtSc", "matrix": [7, 0], "x": 19.5, "y": 0},
+                {"label": "Scroll Lock", "matrix": [7, 1], "x": 20.5, "y": 0},
+                {"label": "Pause", "matrix": [7, 2], "x": 21.5, "y": 0},
+
+                {"label": "`", "matrix": [1, 0], "x": 0, "y": 1.25},
+                {"label": "1", "matrix": [1, 1], "x": 1, "y": 1.25},
+                {"label": "2", "matrix": [1, 2], "x": 2, "y": 1.25},
+                {"label": "3", "matrix": [1, 3], "x": 3, "y": 1.25},
+                {"label": "4", "matrix": [1, 4], "x": 4, "y": 1.25},
+                {"label": "5", "matrix": [1, 5], "x": 5, "y": 1.25},
+                {"label": "6", "matrix": [1, 6], "x": 6, "y": 1.25},
+                {"label": "7", "matrix": [1, 7], "x": 7, "y": 1.25},
+                {"label": "8", "matrix": [1, 8], "x": 8, "y": 1.25},
+                {"label": "9", "matrix": [1, 9], "x": 9, "y": 1.25},
+                {"label": "0", "matrix": [1, 10], "x": 10, "y": 1.25},
+                {"label": "-", "matrix": [1, 11], "x": 11, "y": 1.25},
+                {"label": "=", "matrix": [5, 2], "x": 12, "y": 1.25},
+                {"label": "Backspace", "matrix": [5, 1], "x": 13, "y": 1.25, "w": 2},
+
+                {"label": "Num Lock", "matrix": [6, 0], "x": 15.25, "y": 1.25},
+                {"label": "/", "matrix": [6, 1], "x": 16.25, "y": 1.25},
+                {"label": "*", "matrix": [6, 2], "x": 17.25, "y": 1.25},
+                {"label": "-", "matrix": [6, 3], "x": 18.25, "y": 1.25},
+
+                {"label": "Insert", "matrix": [7, 5], "x": 19.5, "y": 1.25},
+                {"label": "Home", "matrix": [7, 4], "x": 20.5, "y": 1.25},
+                {"label": "Page Up", "matrix": [7, 3], "x": 21.5, "y": 1.25},
+
+                {"label": "Tab", "matrix": [2, 0], "x": 0, "y": 2.25, "w": 1.5},
+                {"label": "Q", "matrix": [2, 1], "x": 1.5, "y": 2.25},
+                {"label": "W", "matrix": [2, 2], "x": 2.5, "y": 2.25},
+                {"label": "E", "matrix": [2, 3], "x": 3.5, "y": 2.25},
+                {"label": "R", "matrix": [2, 4], "x": 4.5, "y": 2.25},
+                {"label": "T", "matrix": [2, 5], "x": 5.5, "y": 2.25},
+                {"label": "Y", "matrix": [2, 6], "x": 6.5, "y": 2.25},
+                {"label": "U", "matrix": [2, 7], "x": 7.5, "y": 2.25},
+                {"label": "I", "matrix": [2, 8], "x": 8.5, "y": 2.25},
+                {"label": "O", "matrix": [2, 9], "x": 9.5, "y": 2.25},
+                {"label": "P", "matrix": [2, 10], "x": 10.5, "y": 2.25},
+                {"label": "[", "matrix": [2, 11], "x": 11.5, "y": 2.25},
+                {"label": "]", "matrix": [5, 3], "x": 12.5, "y": 2.25},
+                {"label": "\\", "matrix": [5, 4], "x": 13.5, "y": 2.25, "w": 1.5},
+
+                {"label": "7", "matrix": [6, 7], "x": 15.25, "y": 2.25},
+                {"label": "8", "matrix": [6, 6], "x": 16.25, "y": 2.25},
+                {"label": "9", "matrix": [6, 5], "x": 17.25, "y": 2.25},
+                {"label": "+", "matrix": [5, 10], "x": 18.25, "y": 2.25, "h": 2},
+
+                {"label": "Delete", "matrix": [7, 6], "x": 19.5, "y": 2.25},
+                {"label": "End", "matrix": [7, 7], "x": 20.5, "y": 2.25},
+                {"label": "Page Down", "matrix": [7, 8], "x": 21.5, "y": 2.25},
+
+                {"label": "Caps Lock", "matrix": [3, 0], "x": 0, "y": 3.25, "w": 1.75},
+                {"label": "A", "matrix": [3, 1], "x": 1.75, "y": 3.25},
+                {"label": "S", "matrix": [3, 2], "x": 2.75, "y": 3.25},
+                {"label": "D", "matrix": [3, 3], "x": 3.75, "y": 3.25},
+                {"label": "F", "matrix": [3, 4], "x": 4.75, "y": 3.25},
+                {"label": "G", "matrix": [3, 5], "x": 5.75, "y": 3.25},
+                {"label": "H", "matrix": [3, 6], "x": 6.75, "y": 3.25},
+                {"label": "J", "matrix": [3, 7], "x": 7.75, "y": 3.25},
+                {"label": "K", "matrix": [3, 8], "x": 8.75, "y": 3.25},
+                {"label": "L", "matrix": [3, 9], "x": 9.75, "y": 3.25},
+                {"label": ";", "matrix": [3, 10], "x": 10.75, "y": 3.25},
+                {"label": "'", "matrix": [3, 11], "x": 11.75, "y": 3.25},
+                {"label": "Enter", "matrix": [5, 5], "x": 12.75, "y": 3.25, "w": 2.25},
+
+                {"label": "4", "matrix": [6, 8], "x": 15.25, "y": 3.25},
+                {"label": "5", "matrix": [6, 9], "x": 16.25, "y": 3.25},
+                {"label": "6", "matrix": [5, 11], "x": 17.25, "y": 3.25},
+
+                {"label": "Shift", "matrix": [4, 0], "x": 0, "y": 4.25, "w": 2.25},
+                {"label": "Z", "matrix": [4, 1], "x": 2.25, "y": 4.25},
+                {"label": "X", "matrix": [4, 2], "x": 3.25, "y": 4.25},
+                {"label": "C", "matrix": [4, 3], "x": 4.25, "y": 4.25},
+                {"label": "V", "matrix": [4, 4], "x": 5.25, "y": 4.25},
+                {"label": "B", "matrix": [4, 5], "x": 6.25, "y": 4.25},
+                {"label": "N", "matrix": [4, 6], "x": 7.25, "y": 4.25},
+                {"label": "M", "matrix": [4, 7], "x": 8.25, "y": 4.25},
+                {"label": ",", "matrix": [4, 8], "x": 9.25, "y": 4.25},
+                {"label": ".", "matrix": [4, 9], "x": 10.25, "y": 4.25},
+                {"label": "/", "matrix": [4, 10], "x": 11.25, "y": 4.25},
+                {"label": "Shift", "matrix": [4, 11], "x": 12.25, "y": 4.25, "w": 2.75},
+
+                {"label": "1", "matrix": [5, 6], "x": 15.25, "y": 4.25},
+                {"label": "2", "matrix": [5, 7], "x": 16.25, "y": 4.25},
+                {"label": "3", "matrix": [5, 8], "x": 17.25, "y": 4.25},
+                {"label": "Enter", "matrix": [8, 10], "x": 18.25, "y": 4.25, "h": 2},
+
+                {"label": "\u2191", "matrix": [6, 10], "x": 20.5, "y": 4.25},
+
+                {"label": "Ctrl", "matrix": [8, 0], "x": 0, "y": 5.25, "w": 1.25},
+                {"label": "GUI", "matrix": [8, 1], "x": 1.875, "y": 5.25, "w": 1.25},
+                {"label": "Alt", "matrix": [8, 2], "x": 3.125, "y": 5.25, "w": 1.25},
+                {"label": "Space", "matrix": [8, 3], "x": 4.375, "y": 5.25, "w": 6.25},
+                {"label": "Alt", "matrix": [8, 4], "x": 10.625, "y": 5.25, "w": 1.25},
+                {"label": "Fn", "matrix": [8, 5], "x": 11.875, "y": 5.25, "w": 1.25},
+                {"label": "Ctrl", "matrix": [8, 6], "x": 13.75, "y": 5.25, "w": 1.25},
+
+                {"label": "0", "matrix": [8, 7], "x": 15.25, "y": 5.25, "w": 2},
+                {"label": ".", "matrix": [8, 9], "x": 17.25, "y": 5.25},
+
+                {"label": "\u2190", "matrix": [7, 9], "x": 19.5, "y": 5.25},
+                {"label": "\u2193", "matrix": [7, 10], "x": 20.5, "y": 5.25},
+                {"label": "\u2192", "matrix": [7, 11], "x": 21.5, "y": 5.25}
             ]
         }
     }
diff --git a/keyboards/matrix/cain_re/keymaps/default_2u_numpad_plus_enter_zero/keymap.c b/keyboards/matrix/cain_re/keymaps/default_2u_numpad_plus_enter_zero/keymap.c
new file mode 100644
index 0000000000..0a02e2205f
--- /dev/null
+++ b/keyboards/matrix/cain_re/keymaps/default_2u_numpad_plus_enter_zero/keymap.c
@@ -0,0 +1,44 @@
+/**
+ * keymap.c
+ *
+    Copyright 2020 astro <yuleiz@gmail.com>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    [0] = LAYOUT_2u_numpad_plus_enter_zero(
+        KC_ESC,           KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,                                            KC_PSCR, KC_SCRL, LT(1,KC_PAUS),
+
+        KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,    KC_NUM,  KC_PSLS, KC_PAST, KC_PMNS,    KC_INS,  KC_HOME, KC_PGUP,
+        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,    KC_P7,   KC_P8,   KC_P9,   KC_PPLS,    KC_DEL,  KC_END,  KC_PGDN,
+        KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,     KC_P4,   KC_P5,   KC_P6,
+        KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT,    KC_P1,   KC_P2,   KC_P3,   KC_PENT,             KC_UP,
+        KC_LCTL,          KC_LGUI, KC_LALT,                            KC_SPC,                             KC_RALT, MO(1),   KC_RCTL,    KC_P0,            KC_PDOT,             KC_LEFT, KC_DOWN, KC_RGHT
+    ),
+
+    [1] = LAYOUT_2u_numpad_plus_enter_zero(
+        KC_MUTE,          _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                                           _______, _______, _______,
+
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,    _______, _______, _______, _______,    _______, _______, _______,
+        KC_NUM,  RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, _______, _______,    _______, _______, _______, _______,    _______, _______, _______,
+        QK_BOOT, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,    _______, _______, _______,
+        _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,    _______, _______, _______, _______,             KC_VOLU,
+        _______,          _______, _______,                            KC_MPLY,                            _______, _______, _______,    _______,          _______,             KC_MPRV, KC_VOLD, KC_MNXT
+    ),
+
+};
diff --git a/keyboards/matrix/cain_re/matrix_diagram.md b/keyboards/matrix/cain_re/matrix_diagram.md
new file mode 100644
index 0000000000..398e1ff694
--- /dev/null
+++ b/keyboards/matrix/cain_re/matrix_diagram.md
@@ -0,0 +1,21 @@
+# Matrix Diagram for Matrix Cain RE
+
+```
+┌───┐   ┌───┬───┬───┬───┐ ┌───┬───┬───┬───┐ ┌───┬───┬───┬───┐                 ┌───┬───┬───┐
+│00 │   │01 │02 │03 │04 │ │05 │06 │07 │08 │ │09 │0A │0B │50 │                 │70 │71 │72 │
+└───┘   └───┴───┴───┴───┘ └───┴───┴───┴───┘ └───┴───┴───┴───┘                 └───┴───┴───┘
+┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐┌───┬───┬───┬───┐┌───┬───┬───┐
+│10 │11 │12 │13 │14 │15 │16 │17 │18 │19 │1A │1B │52 │51     ││60 │61 │62 │63 ││75 │74 │73 │
+├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤├───┼───┼───┼───┤├───┼───┼───┤   ┌───┐
+│20   │21 │22 │23 │24 │25 │26 │27 │28 │29 │2A │2B │53 │54   ││67 │66 │65 │64 ││76 │77 │78 │   │   │
+├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤├───┼───┼───┼───┤└───┴───┴───┘   │5A │ 2u Numpad Plus
+│30    │31 │32 │33 │34 │35 │36 │37 │38 │39 │3A │3B │55      ││68 │69 │5B │5A │                │   │
+├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────────┤├───┼───┼───┼───┤    ┌───┐       ├───┤
+│40      │41 │42 │43 │44 │45 │46 │47 │48 │49 │4A │4B        ││56 │57 │58 │59 │    │6A │       │   │
+├────┬─┬─┴──┬┴───┼───┴───┴───┴───┴───┴───┴─┬─┴──┬┴───┬─┬────┤├───┼───┼───┼───┤┌───┼───┼───┐   │8A │ 2u Numpad Enter
+│80  │ │81  │82  │83                       │84  │85  │ │86  ││87 │88 │89 │8A ││79 │7A │7B │   │   │
+└────┘ └────┴────┴─────────────────────────┴────┴────┘ └────┘└───┴───┴───┴───┘└───┴───┴───┘   └───┘
+                                                             ┌───────┐
+                                                             │87     │ 2u Numpad Zero
+                                                             └───────┘
+```