How to show BTT custom touch bar when a button is pressed?

I want to show the custom touch bar only when I hold down a modifier. I added some actions and configured them to show only when CMD is pressed. In the settings I checked "Hide BetterTouchTool Touch Bar if nothing to show (no actions configured). Unfortunately, the custom touch bar will not appear when I press the appropriate modifier (CMD in this case).

I like BTT, but I want to show the default controls by default and only use BTT for additional actions that should show up using a modifier key.

Is this possible?