Okay...I made the mistake of creating a model and drawing using the wrong file name. We use a system where our drawing are spelled out as so...G1xxxx, G2xxxx, G3xxxx...where 1, 2 or 3 signified the size of our drawing 1=A, 2=B, 3=C. I created a model with the mindset that it was going to me on a B sized drawing. So it is G2xxxx. Afterward I decided it would fit better on a C sized Border. So, now my numbering is incorrect. Is there a way I rename my files and still maintain the relationship between the model and drawing?