[Freeswitch-users] Two portaudio UA's, one FS. Possible?

I have an app where I would like to run two portaudio user agents on the same computer (two sound cards). I want one UA to be feeding a conference, and the other as a softphone. I don't see a way to run two portaudio ua's on the same instance of FS. Is this possible. If not, OK to run two FS instances? TIA