Glad to have you here, Vitan.

The customer statement feature is available in QuickBooks Online for a while now. Though, you can only create and send statements per customer, and not per job or projects. I'd like to share this article for more details: How To Create And Manage Statements. 

Our engineers would like to hear your thoughts about the existing customer statement feature in the program. Please send a feature request directly to them by clicking the Gear icon in the upper-right hand corner of QuickBooks, then click Feedback.

Don't hesitate to ask questions in the Community if you need help.