HEAR! HEAR! As a long time user of ArchiCAD I am still not using the Calculate function ( which is always advertised by GS and which people who don't know better would assume is easy to use ), because I lack what I know will be significant time to master the the degree necessary to not either get me into trouble with inaccurate quantities or make me look foolish which probably wouldn't be that difficult.
I vote Essential ( twice if I could )
Gerald
"The simplification of anything is always sensational" GKC
AC 25-4013 USA, CadImage Tools
2019 MacBook Pro 16" w/ AMD Radeon Pro 5600M GPU
OS X 11.6
2.4 Ghz 8 core i9, 64 GB RAM
27" LG 5K Monitor