SUMMARY
I have a notebook with two external screens and the notebook screen. I set up the panel on the bottom of my notebook screen with many personal settings and widgets. Now I need to duplicate this settings to my two external screens. 

STEPS TO REPRODUCE
1. Setup panel on external screen number one.
2. Connect external screen number two, there is no panel shown
3. Add panel to screen two, I can't add a existing (my own setup) panel. I can only add a default (or other) panels

OBSERVED RESULT
There is no option to store a panel setting as default settings. I want to know, where I can duplicate my panel on the notebook screen.

EXPECTED RESULT
Function: Add widget -> Add panel from screen xy
or when I edit my existing panel: Set this setup as default panel.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 22 
(available in About System)
KDE Plasma Version: 5.25.7
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
This function is missing a long time. Now I connected my screens via a docking station and typ-c. Now all my external screen panels are gone and I need to set them again. It is very anoying.