Divert the recycle line to go from the storage tank to the tank or tanks you want to fill. You can do it with some ball valves.
Some tru green hippos have this, some don't.
I never liked transferring between tanks this way. It can get really confusing and you have enough valves to deal with. I like to go old school and just pull from one and stick my gun in the other.
Nice looking setup. Those hippos are bulletproof tanks but very maneuverable.