Another trick with scripting:
Sync.gig (19.2 KB)
The trick is, that in scripting the value of a widget is globally stored in a special rackspace and when another rackspace is switched it reads the last value.
This way the position of your mapped expression pedal is “remembered”
Just load this gig and map the vertical slider widget in the normal rackspaces to your expression pedal and test if this is working for you.
And this is the thread where it was discussed some time ago:
Keep volume or mute of certain plugins independent of variations?