First off, I apologize for posting this question in the wrong place initially.
I have noticed with the iOS13 beta that it no longer appears possible to bulk delete attachments in iMessage. In prior version, you could access the info section for the chat string, long press an attachment to bring up the <More> option and then select multiple attachments for deletion or whatever.
This appears to have been removed or changed in the iOS13 beta. Have I missed something or has this functionality indeeed been removed?