Quicker Hotkeys

Open the keyboard action management page, remove the default rule that opens the panel with a single Ctrl press, then add a new keyboard action rule and enable double-click Ctrl for opening the panel.

The official guide notes that pressing Alt often activates window menus, which can cause selected text in the previous application to lose focus. If a rule depends on selected content, Alt can interfere with it.

In the search box, press and hold F1 to display search tips. The guide also says you can change the key used for showing these tips in the related settings.

This page lists 38 keyboard shortcuts for Quicker, organized into 5 sections. It currently covers Windows.