Vectorworks - Setting the Number of Undos I’ve been reading a Vectorworks discussion list about a user that is having trouble with his Vectorworks going slow and crashing, especially with rendered viewports. The problems went away when the undos were reduced to 3. Go to the Menu Bar. Choose Tools > Options > Vectorworks Preferences... Change the Maximium Number of Undos to a low number a see if many of your problems go away.

I’ve been reading a Vectorworks discussion list about a user that is having trouble with his Vectorworks going slow and crashing, especially with rendered viewports. 

The problems went away when the undos were reduced to 3.

Go to the Menu Bar.

Choose Tools > Options > Vectorworks Preferences...

Change the Maximium Number of Undos to a low number a see if many of your problems go away.