Delete dead space

Hi. I need to delete 2 beats from all tracks. I can select and move or delete whole measures but not empty space. Am I missing something.
ME

Is this mode what you’re looking for, in the bar editor?
https://www.xewton.com/musicstudio/doc/?id=7#Bar_insert.2Fcut_button

Thank you for replying. I was able to find how to remove a whole bar, but not a part of a bar.
M