How does Command Palette work with '@hotkey'?

[skarsgal]

I simply wanted to see all the quick search key assignments (for add 'Alt-A' for delete entire line).
So I did: Help --> Command Palette: cuda says --> enter '@hotkey' for show all.
How this works?
Why You do not use a menu like 'Shortcut Mapper' as Notepad++?

[main Alexey]

It is simple: in the Cmd Palette filter box enter e.g. "@F1" to find all items which use F1, F11, F12.