Let's say there are 8 provinces in the map and 2 bonuses.
Bonus A has territories A, B, C, D, and E.
Bonus B has territories B, F, G, and H.
How am I going to make territory B? Just asking because I don't know.

I am confused what you mean. Are you making a map or playing a game?

Take B,F,G and H

Making a map.
Might be vague, will clarify.
How do you make a territory part of two overlapping bonuses?

When you are assigning bonuses to a territory in the map designer, assign both bonuses to the territory?

Oh. Thanks. I didn't know I could do that.