#include QMK_KEYBOARD_H enum layers { NORMAL_LAYER = 0, SECOND_LAYER }; enum custom_keycode { VS_COMMENT = SAFE_RANGE, VS_UNCOMMENT, TST_STRING }; bool process_record_user(uint16_t keycode, keyrecord_t *record) { switch (keycode) { case VS_COMMENT: if (record->event.pressed) { SEND_STRING(SS_LCTL("kc")); } break; case VS_UNCOMMENT: if (record->event.pressed) { SEND_STRING(SS_LCTL("ku")); } break; case TST_STRING: if (record->event.pressed) { SEND_STRING("12345\n"); } break; } return true; } const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { [NORMAL_LAYER] = LAYOUT_ortho_2x4( VS_COMMENT, VS_UNCOMMENT, TST_STRING, KC_4, KC_5, KC_6, KC_7, TO(1) ), [SECOND_LAYER] = LAYOUT_ortho_2x4( KC_A, KC_B, KC_C, KC_D, KC_E, KC_F, KC_G, TO(0) ) };