How to use sticky modifier keys

You can enable the sticky modifier keys from Karabiner-Elements Settings > Simple modifications.

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Sticky modifier key indicator

Sticky modifier key indicator will be shown while the sticky modifiers are active.

sticky-modifier-key-indicator@2x.png

You can hide the indicator from Karabiner-Elements Settings > UI.

indicator-configuration@2x.png

Sticky modifiers and mouse events

The sticky modifiers are not deactivate by mouse buttons if you are not enabled the mouse.

There are two solutions: