I learned about the seemingly secret "TestZBiasFactor" command here on this board, and finding that a value of 16 produced better display results in the majority of my models, I set Rhino to run the following macro every time I created a new document: 

'TestZBiasFactor 16 _Enter

However, after the latest update, this command behaves a bit strangely, and will not exit after pressing enter; the only way to get out of it when entering it manually is to press escape. 

My questions are as follows:

1. Is there a better way to set a default for this value? I recognize that its "right" setting is determined visually and varies widely from document to document, but I would appreciate being able to set a standard value higher than 1.

2. If not, is there a way to exit this command within a command macro? As far as I know there is no way to simulate "Escape" in a command macro, only "Enter", and "EnterEnd" also does not seem to work. 

Any thoughts?