This question is in reference to Atlassian Documentation: Attachments Macro
Suppose i have a set of 50 attachments with two types of file name structures:
Fred1.PDF Fred2.PDF Fred3.PDF .... Fred20.PDF
Mary1.PDF Mary2.PDF Mary3.PDF .... Mary30.PDF
Can I embed two versions of the Attachments macro (perhaps each in an Expand macro) and have them "filter" what is in the list e.g. one for files as Fred* and another for Mary*
I don't want to have to go through the list and add Labels to each file .. somewhat tedious! 
Note also this (as yet unanswered) question about the downloading selction from that filtered list
https://answers.atlassian.com/questions/43095217