I've inherited as-builts for a job from another outfit (bad feelings all around ), and the goal is to do some minimal changes fo a small addition and modify some drainage pipes and structures. The source drawings have been bound, so _everything_ in in the one model file, multiple phases, old existing, demo, etc etc.
my problem is, when I double click in a locked viewport, the model space vanishes (apparently zooming way the heck & gone) evidently something is set in the drawing to force a zoom extents.
ideas on what I'm doing wrong?