Is there a way to manually add bank transactions? Quickbooks uploaded most of a bank statement but is missing 6 transactions.

You can use MT Online or one of the converter tools (e.g csv2qbo @ $60 one time license) as a workaround.

https://www.moneythumb.com/?ref=110

Hello zbeagan. Welcome to the Community. When there are missing transactions on the account, I recommend manually uploading them so your banking is up-to-date in QuickBooks. Feel free to check out this helpful article here as it shows you how to upload the missing transactions. 

I encourage you to try out the steps in the article and let me know if you have further questions. Otherwise, I wish you a great rest of the week.