Complex configuration dialog for pure QML applet

[Dmitry]

Hello!

I'm trying to implement system tray in QML. I'm trying to implement 
configuration dialog (widget). Pure QML-based applet  "devicenotifier" 
is an example of implementation of configuration dialog for QML applet. 
But it has only 3 simple radio buttons in its configuration dialog. Its 
way to implement configs dialog isn't possible in my case. The 
configuration dialog (widget) of system tray is complex and it isn't 
possible to get access to this dialog from QML/JS. Moreover, it isn't 
possible from C++ also, because the function 
Plasma::Applet::createConfigurationInterface() isn't accessible (I 
cann't extend Plasma::Applet because applet is QML-based).

Do you have any ideas what can I do? Is extending of functionality 
expected in the future?

Thank you!