The transfer interface is due for a major overhaul, and I believe this type of issue will be addressed. In the meantime, however, you can name your payees whatever you want. So, for instance, you could set the names for your two payees as:
- Cathy - Bank 1
- Cathy - Bank 2 Savings
Or something. The fact that the name on the account at the receiving bank isn’t Cathy - Bank 1 won’t matter. As long as the account number and sort code are correct, the funds will get there. Then for future transfers it’s easy to see which to reuse. This is what I’ve done.