GPO4 multitimbral

I was just curious if there was any way to use GPO4 in true multitimbral mode (i.e. being able to assign a stave to any of the 16 channel/slots in aria), rather than having to load a whole new instance for each instrument. if this is not an option, is it on the "to do" list?
also, strangely enough, if i only set up the multi-output aria player, in vst preferences, GPO doesn't show up in score setup mode, only aria player (multi), and the separate instrument groups (strings, brass, etc) don't show up...
thanks in advance!
kell
also, strangely enough, if i only set up the multi-output aria player, in vst preferences, GPO doesn't show up in score setup mode, only aria player (multi), and the separate instrument groups (strings, brass, etc) don't show up...
thanks in advance!
kell