Thanks Bill. Your links help (my search only returned a couple posts, none of which helped. Might just use two or three performances with the different scenes set up in each one in a live set and step through that way. Thanks again

"I want to use the assignable foot switch to step through scenes. Can this be done, if so, how?"

No. Yamaha's designers and developers didn't foresee a need, nor sufficient other reasons, to make it possible to step through Scenes with a foot switch.

Just as they didn't foresee or find other sufficiently compelling reasons to make a mockable/draft of SuperKnob connectivity via the Mod Wheel, or screen brightness controls, or an Undo feature, or Performance edit protection.

There are some truly mind bending possible work arounds.

The least sanity busting of these is to grow a third arm and hand to operate the Scene buttons.

Changing scenes only requires the press of a button and if you don't have time to do that then maybe scenes are the right solution for your problem.

Time? Time has effects on the whole unsiverse, but not on scene-buttons ... afaik
To press a button one needs body, arm, hand, finger ... skilled organ-players: leg, foot, ball ... playing pipe-organ also heel.

The least sanity busting of these is to grow a third arm and hand to operate the Scene buttons.

Andrew ... I'm getting a fan of you:D

(e)Organ- or (ordinary) keyboardplayers should know, what's up with those knobs. And they also know a solution. But the suggested "improvements", which are really usefull do not have the slightest chance on ideascale.

I would say: synthesizers are simply not made to perform more than a simple piano-play. Therefore they all have racks with 2, 3, 4 or even more machines. And this will never change ... no matter how many "+"s they produce.