Thank you for dropping a post, @healthnowmedical.
If you're referring to changing the account types of the accounts you've set up under the Chart of Accounts, then, you can simply follow these steps:
You can see attached screenshots for additional reference.
I'm also adding this article for your future reference about editing accounts in QBO: Edit Your Chart of Accounts.
You've got me here if you have any other questions and clarifications. I'm always here available to help!