Hi, I have a Roland Cube 60 and am considering getting a footswitch.

For amps like the Roland Cube's, is there any way whatsoever, to switch between the amp models themselves? (say I want to switch between the Acoustic model and the R-fier model -- which are both on channel 2)?

Is there any way at all to do this?

(I understand that a footswitch can change channels -- but in this case, I'm looking to switch between amp models in the same channel)
No, there's not. You're stuck with the green or red channel for your switching.