Don't Forget These Commands...Part 4

Here's another system variable that I forget because I only seem to need it when working on drawings from others:

XCLIPFRAME

Here's the definition from the AutoCAD Help Menu:

When this system variable is set to 0 and you xclip an xreference drawing, you can't see the boundary of the xclip and therefor you can't invert the selection. We set this variable to 2 in our templates so that we can see the frame (for adjusting and inverting as needed), but the frame won't plot.