Searching for UDT members inside AOIs

Is it possible to find the locations of a UDT member inside AOIs in RSLogix? I have a project with several UDTs that are InOut parameters for about 20 AOIs. However, I believe some of the UDT members are unused and I want to find which ones these are. But when I do a cross reference search on a UDT member, it shows every AOI where the main UDT is being used even if that member is not being used in that AOI. Is there a way to search for individual UDT members in AOIs or will I have to manually look through each AOI for each UDT member?

WARNING - do this with a COPY of the program. If you delete a member which has current data you may lose it.

Make a note of the member then delete it. See which errors you get.