Thanks Brian,

Seems a factor setting is needed. In this case, inches to microns, that factor is 25400.

One would hope for a units setup form where the factor, 25400, and the descriptor, µ, could be set.
Is there a hook for such a settings form? …maybe an ini entry?

Is the situation such that one would need to edit the detail of every dimension individually?
Such a scenario seems error prone.

Thanks,
MindSet