Trying to nudge notes and rests horizontally results in VERY strange behavior. Basically, all I want to do is nudge the rest to the right, or the notes to the left without changing or deleting them. Or better yet, just delete the rest!
You could also have used Dorico’s ability to shift notes left or right by the grid selecting them and cmd-alt-left/right to nudge them as needed. No insert mode required in this case.