You can use any key as "Leader key".
Here is a simple example that uses right-cmd. It will block keyboard input while right-cmd is pressed but still allow key sequences. The example preset contains a double-tap a sequence that shows a hud.
right-cmd_leader.bttpreset (7.7 KB)
The key sequence has an advanced trigger condition added that checks whether right-cmd is pressed (" currently_pressed_keyboard_keys CONTAINS "54,""
If you do not want to keep cmd pressed, you can instead remove the
//edit, ah you don't want to keep a key pressed? In that case do it like this:
leader_without_keeping_pressed.bttpreset (7.9 KB)
1.) Start leader key mode (block keyboard input and set a variable)
2.) define your key sequences, add an advanced trigger condition to only trigger if LeaderEnabled is true. Make sure to stop blocking keyboard input when your action is executed.