snap filter setting

[egalicki]

I constantly send out models from Mechanical Desktop assembly model files to externalize and make detail drawings in new separate files. I always have to go in to the pull down menu tabs and select the filter setting to snap to dimensions. I can't find the variable name for this setting so I can put it in a lisp file to make it happen automatically without all this clicking. Anybody know the name of this variable?

Thanks for any help.

eg