I’d say more than a few others – Ted Blank of IOTA mentioned this specific feature of Guide in his talk at NEAIC (North East Astronomical Imaging Conference), the day before NEAF, earlier this month.

Bill Gray wrote…
Scotty eventually got me to see what he was trying to do, and I made
the necessary modification to Guide (about a dozen lines of code). At
the time, I thought it unlikely that anybody but Scotty would be using
this feature, so I didn't document it, but I think he's passed the
word on to a few others in the occultation community; it's been more
useful than I'd envisioned.

Grant