Mode Toggle
Toggle up and down through the different modes on the HX Stomp (Snapshot, Preset, Stomp, Scroll). Great if you're the type of player that sometimes uses Snapshot Mode, but other times uses Stomp Mode, and you want to get back and forth quickly.
Tip: Since there are only 4 modes to scroll through, you could program one OXU switch to handle mode toggling and use the other OXU switch for an Extra Stomp or a dedicated Tap Tempo / Tuner.