On Land

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At Rill Architects we run ArchiCAD on Mac OS X. If you work at Rill, this is your stuff. If you don't, but you work in ArchiCAD, you may find something interesting. Anybody else, I don't know.
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I've added a module for Site Plan info to the Modules folder (in 3 Resources). It contains all the elements for contours, boundaries, notes, etc. I did not include separate note stuff for the 120 & 240 Note layers, but you'll probably live. N.B.: 8.1 only!