How to best organize module-determined content, which will be different for users

That sounds good for the boxes. One of the modules we'll be doing is to allow the owner to use their own payment gateway(s) instead of ours, that one would definitely be integrated into already existing controllers, I guess I had that in mind when I was thinking about where to put the module-only code. Right now we offer Paypal only but if the owner has Stripe then we'll be supporting that too. I guess since that wouldn't be common to all modules it would then belong in the payment-handling controller after all, and not in a place dedicated to modules. Maybe I just needed to talk/type this out, thanks.