Multiple tag ranges on trends

I have a bunch of International projects where instrument ranges are presented in two sets of units.

An example would be PSI vs. KPA.

We have generally run these as a conversion function, but changing the Process Analyst Trend scales is quite code intensive, and difficult to bring the full functionality of process analyst along with the converted values.

The projects have a large amount of trends, but duplicating them with different ranges seems to be the best way to go.

Anybody else have ideas on how to do this gracefully?