File | Settings | IDE Settings | Quick Lists
IntelliJ IDEA | Preferences | IDE Settings | Quick Lists
Use this dialog to configure quick lists.
A Quick List is a pop-up menu of IntelliJ IDEA commands,
configured by the user and associated with a keyboard or mouse shortcut. You
can create as many quick lists, as necessary. Each command, included in a quick list, is identified by a sequential
number. Numbering starts from the numerals (0 to 9), and then proceeds with the letters in alphabetical order.