Hi,
The P10 does not offer any functionality to transpose the keyboard in octave steps.
The problem with that is, that is possible to create patches where the "good sounding spot" lies outside the Keyboard range (e.g. the upper 2 Octaves are too high, but at the lower end it would make sense to have 2 additional octaves), but is not possible to shift the Keyboard Range down.
One could think, that this can be achieved by tuning the oscillators and the filters down, but for a lot of patches the sound will change a little bit (especially for the filter), or it is simply not possible, because the patch uses Poly-Mod and it is not possible (or takes very long) to find the same patch just lower.
Is that likely that such a feature will be added ?
br
Gerhard