Glad to hear you are enjoying Aggravate. The Octave parameter can be mapped to either a Hot Switch or Hot Knob if you like. Mapping it to a Hot Switch will allow you to use a footswitch to turn it on/off.
Hot Switch mapping is described here: https://cdn.eventideaudio.com/manuals/h90/1.8.6/content/edit-modes/parameters.html#hotswitch
