I can provide information about the split screen option to work in different areas using one company in QuickBooks Online (QBO), dmoore.
When you log in to your QBO account, let's copy its URL and open a new tab or a new website if you've multiple screens. This way, you can record deposits and journal entries side by side without closing one or the other.
On the other hand, you can also use the QBO desktop app to perform split screens, like recording different entries side-by-side. If you haven't downloaded the app yet, you can follow the step-by-step process in this article: Download and use the desktop app in QBO.
For future reference, this article might be helpful if you want to learn how to create and manage custom roles for QBO Advance subscription: Assign a custom role to a new user.
I'll be here to assist you further if you need additional assistance with the split screen option in QBO. Have a productive day.