Report of not invoiced hours

Hello Community,

i want to switch from InvoicePlane to Invoiceninja because there are a few features which are important for me. For example: Time Tracking included in the invoicing app.

But i have a question before migration:
Is it possible to get a report of all clients where i can see how many hours in summary per client are not invoiced?

I can not find such an filtering option in Reports section.

Thank you,
BR Andreas

Maybe you can use the tasks report?

Unfortunately not.
I can choose subgroup client there - but then for every project of a client there is a entry in this list. Also i assume that these are the sum of hours per project, not just the not invoiced hours.