Find/Change object size width

Hi guys,

So this is the problem:

I have over 900 pages long catalog and I made a little changes to a textframe options and other object styles, but bottomline is that now I have to change all the textframes width to 62 mm (its now 61 mm). I have tried the Find/Change "Object" options, but I just can't find the right way to do it. Is it even possible to do it with the Find/Change Object? I have to change over 6000 textframes manually if this dosen't work :/

Do I have to do this with Grep scripting and how is that possbile if I have to do it with it?

Thanks beforehand if you reply to this problem!