Can I Setup Multiple Sponsors (Customers) for a Grant?

I have deferred revenue posted to customer 100000 for grant ABC. I have a grant that has a sponsor incorrectly setup as 100181. I am unable to clear the deferred revenue on customer 100000, most likely due to the fact that the sponsor for grant ABC is 100181.

Is there a way that I could either setup sponsor 100000 as an additional grant or change the sponsor for this grant from 100181 to 100000?