Starting with Sytist version 5.0 is the ability to move sub galleries into other galleries or sub galleries.
To move sub galleries, check the checkbox under the sub gallery or sub galleries you want to move.
Then navigate to the location where you want to move them to and click the "Move selected sub galleries to this location" button.
Notes
- When moving a sub gallery with sub galleries under it, it will move that same structure.
- You can not move a sub gallery into a child sub gallery of that same sub gallery.
- You can move within the same gallery or into a completely different gallery.