Zoho mail to contacts and leads, but not to accounts?

Zoho mail to contacts and leads, but not to accounts?

We use the accounts tab a lot for our business because they can be linked to the sales orders. Now we want to use the mail add on to link communication of our emails to our accounts. 

However this is only possible for contacts and leads? It would be convenient to have an e-mails section within accounts as well. 

Is this possible, and if not, is this going to be developed soon?