I just tried this…I’m probably being dense, but this works for me. Here’s what I did:
Rhinoceros > Commands > Customize…
- Selected My UI Scheme custom tool set.
- I have a Modified Palette called Testing Tool Palette which I have loaded into the left-sidebar in my Custom theme.
- Added a Macro called Extract Unroll to Testing Tool Palette with the following macro:
! _ExtractSrf _Pause _UnrollSrf _KeepProperties=Yes _Enter _Delete
…Save, started a new modeling window, created a Box, selected a surface and…
Select surfaces to extract ( OutputLayer=Input Copy=No )_Pause
Extracted one surface.
Select curves on surface to unroll ( Explode=Yes Labels=No KeepProperties=No )_KeepProperties=Yes
Select curves on surface to unroll ( Explode=Yes Labels=No KeepProperties=Yes )_Enter
Area difference is within tolerance.
One surface unrolled.
…and it all seems to work. No “Unknown Command.” What am I missing here? Probably something obvious.