UE5 can't move Playback Stop time

Development Character & Animation
10

Solved Here:

This is what worked for me (5.5.4):

  1. Adjust the working Range and View Range to the desired clip length
  2. Move the play head to frame 0
  3. Right Mouse Click in the Empty Space
  4. Append at the End

Sorry for the necro, hopefully this saves someone a few clicks