hi@jdwhymark 

absolutely you can add your banking account in the QB without connect to automatic bank feed.

but the cons are you won't see the updated balance unless you connect to the bank feed / upload the bank statement manually.

may I know your concern why you prefer not to connect your bank account in QB? 

however, you can see this video and article on how to connect/upload your bank account manually as below : 

1. Training video for how to connect bank account in QBO: https://quickbooks.intuit.com/learn-support/en-us/bank-feeds/how-to-connect-bank-credit-cards/00/344...

2. detailed step by step for manually uploading your bank transaction: https://quickbooks.intuit.com/learn-support/en-us/import-transactions/manually-upload-transactions-i...

3. guideline to use CSV format when uploading bank statement: https://quickbooks.intuit.com/learn-support/en-us/bank-transactions/import-bank-transactions-using-e...

hope this helps :)