Deleting attachments from forum upload manager

The forum attachment manager seems a little un-intuitive, or maybe it is just me.
Is there a way to delete uploads after we have used them? It just seems to save every file I have ever uploaded as an attachment.

Thanks,
Andrew

Form top of the forum page press the ‘Settings’ link
On the left hand side under Miscellaneous select Attachments
Select the attachments you want to delete and press the ‘Delete Selected’ button