fuzzytnth3:
1.
botlh = -frmsz+frmsz !Bottom Left
This equals zero.
2. To create a polygon with a hole, first delineate the perimeter, then return to the first point of the perimeter with a
-1 status code, this tells ArchiCAD that the perimeter is finished and a hole is about to start. Then delineate the hole, again returning to the first point of the hole with a
-1 status code to let ArchiCAD know that the hole is done (and another hole could be started).
David