Back-Saving from ArchiCAD 18 to ArchiCAD 17

Edges/Morph Outlines

•All hidden Uncut Edge appearances will be lost from Composites and Profiles

•Profile Fills with their edges OFF, will turn ON.

•If Morph Auto Outline is OFF, this will be lost

Composites with No Core Skins

 If Composite has no Core in AC18, then the thickest skin will be converted into “Core” when saving back to AC17. If there are 2 or more skins of the same thickness, then define the last and thickest in the Composites dialogue as the Core.