Undo program changes?

I’m using OB-XD as my main synth plugin in Cantabile Solo. When making live changes to the plugin’s parameters, I would like an option to reset to the preset’s default parameters.

In the upper right corner menu I have the option to “undo program changes” which has the necessary effect, but it doesn’t have a hotkey assigned (or the option to do so) and ideally I’d like to bind a MIDI controller to this function - but again, this isn’t an option (or at least I cannot find it).

Please can anyone help?

TIA