Circus Maximus - multiple chariots

How can a player run multiple chariots in Circus Maximus?

I am away from my computer, so I can’t verify, but I believe the colored pairs (dark blue, light blue) allow a single player to control two teams. If you need to control more than two, sign in as solitaire, although that might not protect other player orders correctly. Otherwise, you would need to sign in and out of the different player sides each time you were acting as a specific color.