In this instance, I replaced a weldment member to a different kind. And so solidworks lost the plane/edge that my dimensions were referencing. How do I replace this reference for all dimensions at the same time? Or better yet, is there even any way to replace references in drawings? If so, I can't seem to find it. 

To clarify: I'm using the same part, it doesn't lose ALL of it's references. In this particular instance its only the left most edge that SW has lost. If I could just tell SW this particular edge is now a different one, that would be great. 

Thanks in advance!

Edit: I know how to replace the references 1 by 1. My problem lies with the sheer amount of dimensions I sometimes have on my drawings. So if there is any way to auto-replace or make replacing multiple references more convenient, I would love to know about it.

If there isn't, I'm not sure if it's useful enough for enough people to justify making it.