Problem How to compress a design file when I exit OpenBuildings Designer?
Below is the workflow that allows you to compress a design file when exiting:
1. After opening any DGN file with OpenBuildings Designer click on the File menu at the top left corner.
2. Choose Settings > User > Preferences > Operation, where you will find the option called "Compress File on Exit". Once this option has been ticked on and then saved, the design file will automatically be compressed every time you exit that file.