Yes. You would capture the payments side of the cashbook in the Credit Card cashbook. If you are using the cashbook transfer function from your "main cashbook account", it would create the receipt side of the entry in the CC cashbook when you pay the credit card from the main account. If you are not using the cashbook transfer and are posting to a cash clearing account, you would make the payment from the main account to cash clearing and then have to complete the receipt in the Credit Card cashbook, also against cash clearing.

When you do the credit card cashbook reconciliation, you would owe that money to the bank for a period of time, until you settle the balance at month end. This would be a liability, and would be a credit, hence the -ve required during the recon process.