Feature description

Since 'shift' key is not available for extra keys I have reconfigured my text editor so text selection is done via Alt + arrows. However, pressing 'Alt' key + another key, immediately releases Alt key. This basically prevents me from using Alt/Ctrl key to select text. It would be great if once I hold Alt/Ctrl key in extra keys row for longer time, it remains pressed until I hold it for longer time again.

Reference implementation

I'm not aware of any other similar implementations