Cutting without splitting the selection

Is there a way to cut without it separating and leaving a big hole I have to glue together? Is there a way to cut and keep the selection seamless?
When I make edits, and then have to glue the pieces back together, then run statistics, it gives me tons of windows of each segment I have glued together, rather than one window of the whole selection.

It seems there has to be something I am doing wrong. I’m banging my head against a wall! Help please!

Thanks!

So I finally figured out the bounce selection to make it whole again, but it seems like there should be a way to cut a part without having to make a hole…is it just not a feature in the free version?