It’s very easy to do. I use a combination of stomps and snapshots on all of my presets, so I keep the unit in combo mode with both the top and bottom rows being stomps. When I want one of the buttons to be a snapshot, I do the following:
Select the menu in the upper left of the touch screen (three horizontal lines). Select the Command Center icon. Select the button you wish to program from the screen, then select Preset/Snap from the lower left. Select "Command" and then turn the knob to the far right to "Snapshot". Now turn the Snapshot knob to the desired snapshot number and that's it, the button is now programed to go to the specified snapshot.
If you would like to change the name and color of the button, select the camera icon in the upper right of the screen, choose the snapshot you wish to rename, then select "Rename/color" from the screen.
PS: You might want to edit the title of this thread LOL