Group movement with flying ability

[Sinestro]

I recently was on an unusual sighting in a game and I was not aware of what was in store. I had put the order for the group to move that same turn. And the group failed to move because I found wings. It said it was an invalid movement order since the group was able to fly and I put in a regular 720 order.

I do think this should change. If I had the ability to fly but wanted to walk. That's my choice. I don't see how this is accurate.

however; that is not why I created this post.

Question:

If I have the wings on a group but my group is larger than the 5 brigades that it can fly with. What movement command do I use? or can it not move if it has more than 5?

Sinestro