DAQmx Custom Scale Inverted Map Range?

[CDase]

I am programatically configuring about 50 DAQmx voltage channels.  I am setting them all up with custom scales using the map range type.  Most of my channels have scaled units that increase with increasing pre-scaled units.  Two channels are inverted.  Is there a setting for Map Ranges custom scale to handle inverted scaling?  I could implement a table custom scale.  Just wanting to confirm I'm not missing a setting with Map Ranges before I make that change.

[Kyle97330]

I'm pretty sure it would work just to reverse the "Minimum" and "Maximum" entries.  There's nothing that checks to make sure the "Maximum" is actually a larger value than the "Minimum".