Hello,
Glad to hear you are enjoying your H90.
Most of the algorithms will have a fixed stereo image that is determined by your I/O. For example, many of the 2-voice pitch shifting or delay algorithms will hard pan both voices. Other algorithms will have more unique panning operations (Filter Pong, TremoloPan, Undulator, UltraTap.) Some of the newer algorithms (Head Space, Polyphony, PolyFlex, PolySynth) have discrete panning controls for the voices.
There is no global output panning that can be controlled outside of the algorithm’s parameters, but there are many interesting stereo effects that can be accomplished using the algorithm’s mentioned above (and many others).
Let me know if you have any other questions.