Installing drivers

does anyone happen to know how to install a new plotter in Flexi's production manager (or a new "setup" as they call it) for a plotter that is not on their list?

I have the drivers... no problem there.
Its a brand new Summa D120R
D120 is on the list... not the "R" part
when I select this, none of the OPOS options are there for contour cutting

- but if I install the S120D - the opos options are there. In fact, the whole thing seems to work pretty much "as advertised" - but it seems odd I can't find the right one, and I have to wonder if I'm not creating some yet undiscovered problems by using the wrong driver?

links to any SAI / Flexi / Summa documents on this would be great too! I can never seem to find the darn things, except when folks here post them, lol.