My macro to create “Boundary Surface” from curves that are planar but aren’t connected, just everlapping. Despite “PlanarSrf”, this allows me to click into regions that I want to make a sruface from.
I think that this is a useful command and don’t know if or why it’s not built within Rhino standard commands (or is it hidden somewhere? EDIT - yes, it was hidden to me under “CurveBoolean”).
Sharing my macro for everyone to use or improve: