To move scenes you must select all the panels in the scene and move it to the new location.
Keep in mind your VO files will move as well, and so will everything further down your timeline. So it’s all a question of managing well to avoid messing up what’s already done and working.
FYI - I generally build my scenes after I’m done with my panels. Meaning I split into sequences but I draw all my panels first and then later split into scenes. I find it faster when building story/pacing and then I just build my scenes.
Anyway, hope it all makes sense and will be helpful.