How to use inline reply with zoho mail interface

Hi,

I have not been able to use inline reply style within zoho mail interface.

With gmail, I just had to insert my cursor where I want to reply, hit return and the the solid line along the side of the email would break, allowing to insert my reply.

Inside zoho interface, the same action does not break the solid line. So is it possible to use inline reply with zoho ?

Thanks