Trying to add another zoho account to my existing zoho account???

Trying to add another zoho account to my existing zoho account???

Hello - I'm quite new to all this so please bear with me..
I'm doing an overhaul in creating a new email account with a new provider. I'm just tired of gmail and like zoho so far!!
So,I created a main 'personal' zoho email and another 'professional for my resume' zoho email and want to link the two together..how would I accomplish that?I've looked but can't seem to find out how.

Thanks in advance!