Under regular gameplay we’re able to setup and edit up to 5 teams for free or pay to add more.
That being said it would be very helpful if that similar function was used for war. Being able to edit and setup 6 war teams for each flag would be very helpful to those with busy schedules and life. Being able to thoughtfully plan out your 6 offensive war teams during both war prep and during war itself. So when you select a team you want to fight you simply scroll right or left like in a raid to select the team you plan on using for the attack.