Attachment note contents and the paper clip icon display on the Roster by default using the Full roster view. The default roster views show the paper clip icon, clicking on the paper clip shows the attachment note, allows for quick add, edit and delete of attachments.
To turn inline attachments on a new custom roster view or update a custom roster view that does not show the paper-clip icon to the far right of the Roster follow the steps below:
Add Roster View...
Show/Edit Roster View...