If you have only one expression pedal you can't use it for volume swells in one rig, morphing for another, or wah or pitch...without changing manually the settings.
Where is the logical problem?
There must be a solution for this. Only if the FXs would have a full range volume instead of a only +-5 range volume for example. A volume block would work aswell. Or if the input volume would be a morphable parameter... You even would be able to do swells with momentary switch morphing this way. Or a pedal link option where the pedal is set for volume if there is not morph nor wah nor pitch activated in this rig.
Maybe the option to not change morph with pedal if wah or pitch is activated even if link options are on would be nice too.
Am i asking too much? Is it impossible?