Hi Sandy,
It might be the only solution. Unfortunately there is no direct connection between the forum and the attachment, only the topic/reply and the attachment.
I could somehow modify the code so that for each search instace there is only a number of allowed forums for attachments, in that case you wouldn’t need those rules for the attachments.
If you can make a list of which search ID should display attachments from which forum IDs only, let me know. I will try to add that to the code.