Pasting into a track

I am trying to cut the end of track 1 and paste it onto the beginning of track 2 (so I can have the verbal introduction of the song on the same track as the song itself). It says there is not enough space.

I tried:
EDIT - PREFERENCES - TRACK BEHAVIORS, and unclicking the boxes, but it still doesn’t work.

Go to Tracks Behaviors preferences and check “Editing a clip can move other clips” to be “on

See: https://manual.audacityteam.org/man/tracks_behaviors_preferences.html

Peter