Hi guys
I wanna submit a request based on the topic linked below   https://forum.vectorworks.net/index.php?/topic/51777-vw-17-massive-file-size-for-dwg-export/&page=0#comment-259615   In my opinion VW till the 2014 release was great in exporting 2D manageable DWG files with many Viewports, while maintaining a good compatibility
From 2015 till now every viewport doubles the file size
In effect Vectorworks creates a symbol with the FULL drawing inside for each Viewport included all nested symbols
So if you export the only model space with about 10 symbols in a DWG file, its size could be for instance 10MB, while the same file exported in in 7/8 Sheet layers with 4/5 Viewports for each one can reach the file size of 170/200MB with 1300 blocks/symbols inside
For each Viewport a new AutoCAD layer is created, so you really can't work Every time I was exporting in Vectorworks 2014 and then to DWG, but 2014 isn't compatible with High Sierra  It should be nice having a flag, permitting you to export in the old way at the cost of a minor (not sure about that) DWG compatibility     Erminio