Can Active Roles access the Sponsor attribute in Azure?

We're trying to figure out if it's possible to see/amend the sponsor attribute for Guest accounts in Azure, does anyone know if this is possible or is likely to become possible in the future?  

We have people who request Guest accounts and the sponsor in Azure is the person who invites them, which will be a member of our Helpline staff and we want to change it to the person who requested the account.  This will help us with access reviews because we're looking for the sponsor to be asked to confirm the account is required every six months.  I can't figure out what the name of the attribute is to either add it to the Web Console view for accounts or run a powershell to get it.