Why not set up a new blank drawing with all the settings the way you want them...sometimes called a template.....and then save this for use later with a name you can find...JoeSmoePreferences.dwg.....then insert the drawing you want to change into the JoeSmoePreference.dwg.......Save it as a 2nd Version of the drawing you inserted so that you keep the original intact...this is always very important!....the inserted drawing should take on the properties of JoeSmoePreference.dwg with minor adjustments perhaps to layers which can easily be fixed using LayerManager Tools.....give it a try first on a test drawing and see what happens.....create a procedure that works for you....write it down...very important...better make it a word doc...lol...and then you can use it over and over and it will be become old hat... Good luck.