When you accidentally cut from one camera track to another when editing multi camera footage in Premiere and insert a cut you didn’t want and it is too late to use the undo feature because you have made several more cuts since then, rather than setting the new clip after the cut back to the camera you want, e.g. “camera 1, camera 3, camera 2, camera 1, oops, that was supposed to be camera 1, camera 1, camera 2, camera 1”, you can instead easily delete the incorrect cut by clicking on the cut in the timeline, and hitting the delete key.
So long as you haven’t done a delete/ripple delete of the intervening video the removal of the accidental camera switch/hard cut is completely taken out.
Editing on eight synced cameras my Premiere timeline looks like the forearms of a goth chick at a Bright Eyes concert.