I can see how the option to access your two companies at once would benefit your business and the program. However, this is currently unavailable in QuickBooks Online.
I want you to know that your opinion is important to us and we value it. With this, I’d suggest sending feedback request to our product development team. They will evaluate these and pick some of them to include in future updates. This way, we can help you with your business needs.
Go to the Gear icon.
Under the Profile column, click on Feedback.
Share your feedback. Then, click Next.
You'll want to track your suggestion through this website. You can also visit our blog to keep up with all of our recent events and developments.
Please don't hesitate to Reply in this thread if you have any additional questions about QuickBooks. I’ll be here to answer them for you. Take care.