You're looking for the following options in Interface:
Battle Length (Normal or Full)
Full Fleet Battles (check)
Show Full Fleet Battles Only If Both Sides Are Fleets (uncheck)
Auto-Play Full Battles (up to you)
Show Orbiting Ship In Planet In Normal And Quick Battles (probably uncheck)
You may also need to check Show Battle Sequences and, if you like, Show Opponent's Battle Sequences.