Rewire: only one .reason file active at a time?
My question is twofold.
1) I tend to stack a bunch of synth in a .rns/.reason file -- a Reason song file. Then the .reason file become an 'instrument', which I usually play from a keybord.
It seems that only one .reason file can be active at a time.
What if I wanted to play more than one at the same time?
2) The same applies to Rewire. Can Rewire address more than one .reason file at the same time, or does the same limitation apply?
[Clearly if that's not possible, the next step would be to change methods