It works, thank you, but I think it is much easier to just add \# 0 before \h in the REF field.

I was not thinking clearly, because the problem with finding the right equation captions to make a cross-reference still exist, because there no label and caption for equations captions that are basically just numbers. If there are lots of equations in a long document, then it would be too hard to find the right equation to put cross-reference for it, except I put a bookmark and make a name for each of them. Do you have any other genius suggestion please?