Changing the interest rate for a credit card

The interest rate for credit cards is used in the planner in Money. If you need to change this, the n the procedure is as follows.

1. Go to Account Settings by right-clicking the account on the account list.
2. If the Account Type drop-down is grayed out, disable online access for that account
3. If the credit card is enabled for online access, disable that. [M05]Banking->Account Tools->Manage Online Services. Click the credit card account, and choose "Stop Using Online Services...."
4. Go to Account Settings by right-clicking the account on the
   account list.
5. Change the Account Type drop-down to Bank. If the Account Type
   drop-down is grayed out, you probably did not disable online access for that account. (changing to Bank also seemed to work, but gave
   a different setup)
6. Change the interest rate.
7. Change the Account Type drop-down to Credit Card.
8. Set up the credit card for online access again if you like.

Thanks to Cal Learner, MVP for the answer to this question