Yup. This board is a programmable bank of extra switches. Whilst not using it, your foot (in my case left) rests just off the board. When you need to make a change in variation, put in a break infill, whatever, just hit the appropiate button with your foot. They're illuminated so you can tell on a dark stage where they are.
The expression pedal on the right I HAD been hoping to use for overall volume control; on the PSR3k it can't be used for that (it can on the Tyros) so I use it for glide control - much more effective than the pitch bend wheel.
There is an excellent article on it and the 3k here:
http://psrtutorial.com/L/3K/mfc10.html. I looked up your profile to see you have a 2k. I THINK the same applies to a 2k as a 3k but would defer to others on that.
As a former organist, I felt right at home with having a pedalboard. In fact I'd MISSED one when I first came to keyboards. It takes practice but is easier than it might look.
One other point - I find that, particularly needing the FC4 pedal (in my case as a harmony switch) and the FC7 as overall volume control (actually I use it to control just the Style volume and the manual knob for overall control), with the normal X-type keyboard, the space between the stand's feet gets too congested and it's better to use any of the stands where the left and right supports are vertically straight upright.
Hope that helps
Freddie
I assume this is a device with foot switches. The buttons on this are different switches? Your foot fits between these buttons? They look close to one another. Pedal on the right side that rocks back and forth?[/B]