I'm not sure what you mean by "different" chords. If you are talking about inversions then the only one that I know of in the PSR (and all other keybords) is the sixth chord against the minor seventh chord of the same key signature (eg. F6 or Dm7).
As these are the same notes in the chord then you have to play the sixth chord in it's root position and all other inversions are then minor seventh chords.
Where you want a specific root bass note that either is or isn't part of the chord then I have to switch to full keyboard mode as you generally need both hands for these.
There is a chord chart in the Tyros to show which chords are playable and I assume it is the same for all PSRs as well. This tells you of any requirements etc for formulating the chords you require.
KFingers
[This message has been edited by KFingers (edited 10-29-2004).]