Change payment status for COD order only

Hi,

I know that if I click on the edit button within any order, I can click a button to the right of the Status and a window pops up listing the status types. If I click on "Purchase - Awaiting Payment", I can make that the default status type however this would make it the default for all payments, not just COD payments which is what I'm after.

I wondered if anyone knows if there is a workaround so that "Purchase - Awaiting Payment" is the status type only for COD payments and "Purchase - Payment Received" is for all other payments?

Thanks