I want to merge my ZOHO email account and my POP3 email account in Zoho - possible?

I want to merge my ZOHO email account and my POP3 email account in Zoho - possible?

Hello,
I have a domain registered in Zoho (Zoho email) and an  email address in Zoho via Pop3.
Can I merge these 2 accounts so that all emails are in one mailbox, not in 2 mailboxes?
Tom