I have developed some drawing sheets in native MMGS units. I put a bit of work into creating various sections & detailed views etc. So I thought I would copy the MMGS drawing sheet to a new sheet, then just specify IPS units for that new sheet & 'maintain' those IPS units specific to that tab. End result is I would have an MMGS sheet & clone IPS sheet +/- some minor cleanup. But it kind of appears SW doesn't like this so much. No matter where I change Units, either in the Options Tab, or down on the lower right hand side, it applies that Unit specification universally to all Sheets in that particular Drawing file. Is this correct?

If so, what's the best workaround? Copy the entire MMGS Drawing file to brand new file dedicated to fixed IPS units?

(btw, I do understand dual dimensioning inside a Drawing, but what I'm wondering about is entirely MMGS vs IPS drawings, but preserving the work & layout I've already created & not wanting to replicate this with a new drawing from scratch using my IPS drawing template.)