I've been looking for a solution for this for a while, and have only found large foot-pedal devices for the job. I sit on a bar-stool during acoustic gigs and find floor-pedals difficult to reach.
Does anyone have any suggestions for an actual existing device I could buy that is as simple as a two to four button bluetooth (midi/keyboard) controller that is small enough to attach to the back or side of a guitar, a mic-stand, etc. - not on the floor - which could be used with ST3 to do one or two essential things such as START next song, or CROSSFADE to next song, or TOGGLE SONG AUTOPLAY on the fly (for when I realise during a song that I need to tune-up or have a drink), etc.
Thanxx