Dropdown to choose to add Check # or Transaction Type in Write Check window [Edited]

Don't use the "Write Checks" dialog unless you're actually writing a physical check … for which Q will use the "Next" check number in that account.

For debit and EFT transactions in your checking account, just input the transaction directly into the checking account register.

And, WHY would you be recording credit card transactions into your checking account that aren't the payment from checking to the card? Credit card transactions should be recorded in a Credit card account that you've created in Q.

If you're also recording credit card transactions in the checking account, you'll NEVER be able to reconcile your checking account, and reconciling is a strongly advised practice.