VinceNY,
I think you have written about the ACAD-command "_limits". I never set my drawing limits, too.
You can use it, if you want to plot from modellspace. "limits" are like the paper.
If you use the rasterpoints (F7). They are shown only inside the limits.
If you want, that nobody draws outside the limits. LIMCHECK.
L.
ADT 2004