Hey there, @Gpeter. 

Thanks for chiming in on this thread. 

As of right now the subtotal line/function is still unavailable in QuickBooks Online. However, I do recommend submitting your feedback to our Product Developers so they can consider adding this feature back in as soon as possible. 

Feedback 

They'll take the time to review your request and try to include this feature again in the next available update or in the near future. 

Feel free to come back if you have any other questions. I'm only a post away if you need me again. Bye for now!