RVTOSNAP
Determines whether entity snapping is turned on for .rvt and .rfa file underlays. This system variable can be overridden by the UOSNAP system variable.
Type: Integer
Saved: In the registry
Range: 0 (Entity snapping is turned off for .rvt and .rfa underlays), 1 (Entity snapping is turned on for .rvt and .rfa underlays)
Default: 0