-You can define FC660 and Poker style ESC with `ACTION_LAYER_MODS`.
-https://github.com/tmk/tmk_core/blob/master/doc/keymap.md#35-momentary-switching-with-modifiers
-
-```
-#include "keymap_common.h"
-
-
-/* Leopold FC660
- * https://elitekeyboards.com/products.php?sub=leopold,compact&pid=fc660c
- * Shift + Esc = ~
- * Fn + Esc = `
- *
- * Votex Poker II
- * https://adprice.fedorapeople.org/poker2_manual.pdf
- * Fn + Esc = `
- * Fn + Shift + Esc = ~
- */
-const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
- /* 0: qwerty */
- [0] = KEYMAP( \
- ESC, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, NUHS,BSPC, \
- TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, \
- LCTL,A, S, D, F, G, H, J, K, L, SCLN,QUOT,ENT, \
- FN0, NUBS,Z, X, C, V, B, N, M, COMM,DOT, SLSH,RSFT,ESC, \
- LCTL,LGUI,LALT, SPC, RALT,FN1, RGUI,RCTL),
- [1] = KEYMAP( \
- GRV, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
- TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,\
- TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
- TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
- TRNS,TRNS,TRNS, TRNS, TRNS,TRNS,TRNS,TRNS),
- [2] = KEYMAP( \
- GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, TRNS,TRNS, \
- TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,\
- TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
- TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, \
- TRNS,TRNS,TRNS, TRNS, TRNS,TRNS,TRNS,TRNS),
-};
-
-const uint16_t PROGMEM fn_actions[] = {
- // https://github.com/tmk/tmk_core/blob/master/doc/keymap.md#35-momentary-switching-with-modifiers
- [0] = ACTION_LAYER_MODS(1, MOD_LSFT),
- [1] = ACTION_LAYER_MOMENTARY(2),
-};
-```
-
-Otherwise, you can write code, see this.
-https://github.com/p3lim/keyboard_firmware/commit/fd799c12b69a5ab5addd1d4c03380a1b8ef8e9dc
-
-
-## 32 Fn keys are not enough?
-### actionmap
-It uses 16 bit codes and has no limitation of 32 Fn at the expense of memory space. TMK keymap is actually is 8 bit codes as subset of the actionmap.
-https://github.com/tmk/tmk_keyboard/issues?utf8=%E2%9C%93&q=is%3Aissue+actionmap
-
-### extension for modified keys
-https://geekhack.org/index.php?topic=41989.msg1885526#msg1885526