Game developers suggestion: personal practice/ battle arena.

I would love to see a feature added where an account can practice/try different squads against themselves. This would help filter and try new squads without losing your ranking in arenas.  Example. I have a Master yoda, mace windu, bastilla shan, Jedi revan, and Kellen beq squad. Was considering swapping Kellen for JKLS. I would love to face my team against itself with the player difference to see which is better.  so I could run a VS match with my players and using the same ones twice. So I could play both sides my Yoda, windu, bastilla, revan and Kellen beq vs my yoda, windu, bastilla, revan and JKLS

Or even compare completely different squads. Best way to do this currently is in arenas which may cost your rankings and rewards, or to go against campaign battles, which are sometimes to easy. 

Would also allow practice to see which chemistry works and how certain squads match against certain ones. It would be cool to have that feature for ships too. I think if it happens you should only be allowed to use YOUR CHARACTERS.
Just a suggestion, love the game!