I created a LISP that can be used instead of the DI/DIST command to pull measurements, it shows in the drawing units (just like DI) plus an alternate unit inside the brackets. 

- The command is set to D2 but if you do a find and replace in Notepad you can easily change to whatever you like.

- Our drawing unit is decimal inches and our secondary unit is millimeters but you can change that in notepad as well but you're on your own on that...

We go back and forth all the time between units for materials/hardware/machining/arch drawings/etc. this makes it much easier. Hope it's helpful for someone else!

Download this and then use APPLOAD command in BSB & load it.