Delete bar

How do I delete a bar?

Kind Regards

In Input Mode. Shift-B then type -1.

(also +1, -20 etc and things like || or :neutral_face:)

After writing and deleting a much longer post, my question comes to:
I understand that exiting input mode is escape, but how do you delete a bar in the middle of a system/section/piece?

You input your caret where you want the deletion to happen, and then shift+B, -1 in the popover…