Instructions
Select Digimon from your collection or scan a Digimon eight to 10 times to add it to your collection. In order to scan a Digimon you must fight it in battle.
Open your game menu and select "Party."
Place the Digimon you want to be allies in the same party. Any Digimon fighting together in the same party are allies.
Fight with that party of Digimon until they need to digivolve into their next form.