Proves the 'value' of it that it can be turned off.
You live in a closed world, don't you. There is a value to it, maybe not to you, but there is.
Yaah there is a value to being alerted that one just attached an XREF or inserted a BLOCK into one's
file and maybe, just maybe there might be some new layerss that might not plot the way you want them too.....
really...
and then when you plot, those new layers STILL don't plot the way you
wanted them too...because, hell you really didn't
KNOW how you wanted them to plot or that the idiot that made the block or gave you the XREF had his #$it all BYOBJECT
or some other whacked ass settings....
Yeah LAYEREVAL really saved me some time.....now didn't it...NO