Good to hear from you today, SKolo.

I know how important it is to divide the sales revenue into two classes in QuickBooks Desktop. However, this option is currently unavailable.

You can submit your feedback to make the program better by going to the Send Feedback Online on your QuickBooks Desktop.
 

Also, I can pass along all the suggestions you have to the appropriate channels so you're able to reach a point of resolution as quickly as possible.

In the meantime, I'd suggest visiting the What's New section on your QuickBooks Desktop, to stay informed with our latest news and updates including product improvements.
 

The following article is a good reference: Help Articles for QuickBooks Desktop. It contains more information on how to handle and manage your account.

I'm just a few clicks away if there's anything else you need. Have a great rest of your day!