QuickBooks is a great program that was carefully designed to help streamline your business. I'd be glad to share information about entering transactions.
At this time, you'll have to manually enter your transactions individually. There are several ways on how you can manually enter a transaction in QuickBooks Online. You can do it by clicking the Plus (+) sign, through the register, or on the transaction screen.
To learn more about how to navigate and create transactions, you can visit the article below that shows video tutorials:
If you want to enter a transaction directly to the register, please follow these steps:
You can also add transactions manually by clicking the Plus icon and selecting the transaction type. I'll attach a screenshot below for reference:
Give this a try and let me know if you have questions. I'll be on standby in case you need further assistance.