Thanks for explaining this Barry. Very helpful. I opened the exported DWG file in question (made from File > Save As DWG) via both options you suggested and it worked. However, opening it from File > Open required that I go into the 'settings' first and change the units from...

That's interesting, albeit a little annoying. I attached the exported DWG as an XREF into a new blank file and it comes in with the correct radial dimensions in meters like it should. But when simply 'opened' as a DWG the radial dimensions specifically are always in imperial...

That brings up a good point. Let's say you have a huge development file you want to send to your engineer. Archicad in theory allows you to export (save as) to DWG in the save as menu, which is what I did. This way the engineer gets the complete file, not just zoomed-in part...

The original PLN file is in meters as shown on the screenshot. When saved out as a DWG and then reopened in Archicad (as a DWG file), that is when the '3 dimensions' appear in the bottom right corner as you have noted. Sadly it does exactly the same thing irrespective of it ...

Thanks for the link! This looks pretty good. Are you a user of this plugin? Do you know if Architerra can generate the best solution from A to B across steep terrain, and allow you to input min. and max. slopes and provide balanced cut and fill calculations like RoadEng can ...