It would be nice to be able to associate a document as an attachment from Outlook 365 without saving it somewhere then attaching it, many emails related to one opportunity can create difficulty locating the one attachment you like. 

For example we send a document to a customer they sign and return by email, if we could then drag that email into the attachments element of Zoho CRM instead of downloading then attaching it would speed up the process and prevent us from filtering through many many email associated to the opportunity to find the one email with the attachment we are seeking.