"no parameter" selection for Instr. Auto Device (value -1)

Would be nice if theInstr. Automation Device also was supporting “no parameter” for parameter selection, e.g. using then a -1 for parameter number in the active preset data:


Currently I have to save used slots externally in the GUIAutomationSlider tool (complicated logic, saved in the song comment), since the chosen parameter will be already setup in the device by default! So if I could setup a new IAD only with “no parameter” parameters, I could then easily determine which slots are used and not.