how to treat a same person as customer and vendor in zoho

how to treat a same person as customer and vendor in zoho

hi team,
in my company, few persons acting as creditors as well as debtors (which means sometimes we pay them... some times we paid by them). in that case i would like to maintain a same ledger for that person.in zoho books it is treating creditor and debtor differently . i would like to maintain same single ledger for those persons so that we can track the outstanding easily. can you help me in this regard?