Armory in FE7

Is it possible to add an armory into FE7?

Is it for the prep screen before you started the chapter? Or adding armories on the map?

Prep screen before the chapter. Trying to buy stuff while fighting is absurd, and I hate that mechanic.

Yes, it is possible.

can you expand on that? how do I do that in FEBuilder?

I don’t know if FEBuilder has a patch for this. You can reference how FE8 does prepscreen armory though.