Lift, Remove or Cut ? What's the difference?

Hi, I am new to Shotcut and video editing.

Please could you point me to where I can learn the difference between Lift, Remove and Cut.


Lift = Delete from the timeline without changing the position of following clips.
Remove = Removes clip and the empty space it creates (or just empty space)
Cut = Removes clip and space and copies the clip to the clipboard.


thanks Steve, much appreciated.

Is there a feature that removes the clip and copies it to the clipboard (and leaves space where clip was)? Right now I copy then delete the clip. Basically I am looking for cut that does not remove the space where the clip was.