How about we put it this way:
- the trigger threshold level, which displayed at the bottom left of the screen, should always match the vertical scale of the selected trigger source channel.
I understand that the PicoScope 6 allow user to define their custom probe with custom unit, mx+c scalling. If I want to trigger at a specific level of my custom probe (with my custom unit), I should be able to define them easily with the trigger toolbar as well as the "trigger diamond".
Actually, I don't quite understand about the "Modulus Probe" you've mention about, I've never seen any of those.