You can upgrade, equip, rank up your commanders, and more, by visiting the Hangar.
First, select the unit you want to manage. Using the filter can help you find the specific commander you're looking for more easily. If you want to see more commanders at once, you can change the view by tapping the icon indicated by the arrow.
Additionally, you can sort your commanders based on various criteria, such as level, rarity, role, and affinity. To do this, simply tap one of the options highlighted below.
Once you have selected a commander you can upgrade them in the following ways:
Ship: Upgrade your commander
Equip: Equip and upgrade gear
Skills: Level up and gain new skills and pattern abilities for your commanders
Rank: Promote units to increase their rank
Refit: Sacrifice duplicate commanders to gain new abilities