print dialog cups "advanced tab" missing in qt5/kf5 based applications

We're currently running 10 desktops with kde in our business.

We've been planning to switch from kde4 to kf5/plasma with the now released kubuntu 16.04 lts. A test-run did bring up an unexpected "printing issue" though. The "advanced tab" seems to be missing from the print dialog in kf5/qt5-based applications.

After some investigation I got a reply from Christoph Feck <cfeck@kde.org>
> The job options were moved to the Qt 5 printer properties dialog. If some
> option is missing there, please report this directly.

Using the "advanced tab" we have been able to control extra printer
functionality like stitching or stapling through "cups printer options".

How to regain this functionality with kf5/qt5 based applications? Any help is appreciated.

best regards,
Thomas Kleindienst