Can you mass update Custodian chartfields using ExcelTOCI?

Hello,

I would like to mass update Custodian chartfields using ExcelToCI (PS_ASSET_CUSTODIAN).  I was looking into component interface "Basic_CI", but it only updates custodian name, effective date and sequence. The custodian chartfields are not part of the CI.

Is there a way to update or if there is another CI that I can use? or any other way to mass update?

Thank you,

Irene