How to Organize Units in Fire Emblem Fates?

[sonicandres1]

I have birthright but I have a problem about organizing people when I go to my inventory. For some odd reason, I saw corrin had been moved down instead of being on the top left like I usually see him. Is there a way to organize all of my units in the way I want to? Thanks for reading this, I can't seem to find an answer.

 

[manugutir]

The order of your units will depend on which ones you've selected for battles. For example, if you go to a Castle Battle and decide not to put Corrin in this battle, then Corrin will move to the next place after your last selected unit.