for "upgrading" you would get the modules for the current rooms C5P has now
which ofcourse would be slightly dif due to a new version

new users would buy just the "dock" and rooms they want
they could just get the modeller if they wish, or a bit more and buy hex3
which by then, would be a module also, and could choose to or not buy a renderer
dont need a renderer if you're exporting to another app, but in the long run, this would
take over the other apps, or other companies would fit their programs into these modules

end result is 1 app, has exactly the tools you want, never need to export as all modules
would have the control as if they were 1 program, and ofcourse the smaller plugins like
we have now, that allow adding a single control to the rooms