Simple action remove notes

Sorry but I have difficulty (I’m beginner on dorico) I just wanted to remove the notes in red in this mesure. See attached picture
image
to have this :
image

If you delete a note, usually, you will get rests in its place.

If you turn on INSERT mode (I), then deleting a note will move up the notes after it.

Ho thank you !!! I was in INSERT mode which confused me !