LabVIEW
Use Text Ring to Set Parameter; Need Reverse Text Ring to Read?
If you are just looking for the multiplier, just set that as the value for the ring. Attached is a custom control I quickly made. You can see that it is a ring control of type Double. So the user will see "10uV", but the value attached to that string is 10e-6. You can add more to the ring if you need to.
EDIT: Just reread the whole thread. It looks like Jeff has the solution you need.
Waiting for my test to get done so I'm playing around, please don't mind me here. I made a little vi for you that converts your Sensitivity commands into a voltage, shows it in text (using crossrulz's control - which, as he mentioned, needs to be completed for the whole range), and then reverses the voltage back into sensitivity command...
(Original poster has spent quite a bit of time in putting together all those case structures in his original VI so just showing yet another alternate way of doing it.)
-DP
