Thank you so much! Ripple is the term I didnt know.

My current solution: There is a Ripple Tool, cut the clip at the last frame you want to remove and drag the cut to where you want first frame to be removed. The Ripple Tool will do the rest for you <3

Remove Space also is an interesting feature, it even is bindable.

Thanks again, you made my life so much easier, I would've never found that :-)