Customize sharing options in iMovie on iPhone
You can rearrange items or set which items appear in the iMovie share menu.
In the iMovie app on your iPhone, do one of the following:
From the Projects browser: Tap the movie or trailer you want to share.
If you’re editing a project: Tap Done (in the upper-left corner) to return to the project details screen, then tap the movie or trailer you want to share.
Tap the Share button , tap More from the middle row of options, then tap Edit.
Do any of the following:
Show an item: Tap to turn it on.
Hide an item: Tap to turn it off.
Add an item to Favorites: Tap the Add button (+).
Remove an item from Favorites: Tap the Remove button (–).
Rearrange Favorites: Drag the Rearrange button for each menu item you want to move.