A sticky layer stays pressed until another key is pressed. By using a sticky layer, you don't have to hold the layer key to access a layer. Instead, tap the sticky layer key to activate the layer until the next keypress.
By default, sticky layers stay pressed for a second if you don't press any other key. You can configure this with the
release-after-ms setting (see below).
- Parameter #1: The layer to activate , e.g.
You can configure a different
release-after-ms in your keymap:
Sticky layers behave slightly different from sticky keys. They are configured to
quick-release. This means that the layer is released immediately when another key is pressed. "Normal" sticky keys are not
quick-release; they are released when the next key is released. This makes it possible to combine sticky layers and sticky keys as such: tap
&sl 1, tap
&sk LSHFT on layer 1, tap
&kp A on base layer to output shift+A.
Comparison to QMK
In QMK, sticky layers are known as 'one shot layers'.