## Caveats
-Currently, `LT()` and `MT()` are limited to the [Basic Keycode set](keycodes_basic.md), meaning you can't use keycodes like `LCTL()`, `KC_TILD`, or anything greater than `0xFF`. Modifiers specified as part of a Layer Tap or Mod Tap's keycode will be ignored.
+Currently, `LT()` and `MT()` are limited to the [Basic Keycode set](keycodes_basic.md), meaning you can't use keycodes like `LCTL()`, `KC_TILD`, or anything greater than `0xFF`. Modifiers specified as part of a Layer Tap or Mod Tap's keycode will be ignored. If you need to apply modifiers to your tapped keycode, [Tap Dance](https://github.com/qmk/qmk_firmware/blob/master/docs/feature_tap_dance.md#example-5-using-tap-dance-for-advanced-mod-tap-and-layer-tap-keys) can be used to accomplish this.
Additionally, if at least one right-handed modifier is specified in a Mod Tap or Layer Tap, it will cause all modifiers specified to become right-handed, so it is not possible to mix and match the two.
For Instance:
-- `SHFT_T(KC_A)` Down
+- `SFT_T(KC_A)` Down
- `KC_X` Down
- `KC_X` Up
-- `SHFT_T(KC_A)` Up
+- `SFT_T(KC_A)` Up
Normally, if you do all this within the `TAPPING_TERM` (default: 200ms) this will be registered as `ax` by the firmware and host system. With permissive hold enabled, this modifies how this is handled by considering the Mod Tap keys as a Mod if another key is tapped, and would registered as `X` (`SHIFT`+`x`).
For Instance:
-- `SHFT_T(KC_A)` Down
+- `SFT_T(KC_A)` Down
- `KC_X` Down
-- `SHFT_T(KC_A)` Up
+- `SFT_T(KC_A)` Up
- `KC_X` Up
Normally, this would send `X` (`SHIFT`+`x`). With `Ignore Mod Tap Interrupt` enabled, holding both keys are required for the `TAPPING_TERM` to register the hold action. A quick tap will output `ax` in this case, while a hold on both will still output `X` (`SHIFT`+`x`).
Example:
-- SHFT_T(KC_A) Down
-- SHFT_T(KC_A) Up
-- SHFT_T(KC_A) Down
+- SFT_T(KC_A) Down
+- SFT_T(KC_A) Up
+- SFT_T(KC_A) Down
- wait more than tapping term...
-- SHFT_T(KC_A) Up
+- SFT_T(KC_A) Up
With default settings, `a` will be sent on the first release, then `a` will be sent on the second press allowing the computer to trigger its auto repeat function.