Hi Ashely,
You will need to integrate SAP Inbox with Outlook to get it on Outlook, by default it is just SAP Inbox, but you can see in the Workflow forum how they can be integrated.
System will open a new session with AR master data, so the user can browse to attchments and open them to see before taking a choice.
You can enhance a workflow to pass on comments, the standard predelivered workflow does not do it, so you will need to create a custom workflow.
Regards,
Paulo