Doesn’t work for me
The intent of the suggestion was to use Manager to categorization attachments, that list does not realize that benefit as it contains all attachments.
The original poster initial solution was to use a folder structure, but using Manager account transaction coding structure was a viable alternative.
So while you are correct file name search can be done in the attachment tab, that tab is devoid of all filing structure, so does not address the suggestion.
An alternative solution would be to show the account in the attachment tab, an inferior solution in my opinion as it would not show what transactions do not have an attachment (an important function when entering supporting information).
@shobhit
This idea appears to be related to your suggestions but for reasons already listed Imo there is a better solution