I'm using my mobile phone as Internet sharing device - using Bluetooth Personal Area Network. With classic Ubuntu and Gnome/Unity this was pretty simple - after pairing BT device, new option under NetworkManager's context menu appeared. I just needed to turn on sharing in my mobile and click option in NM menu.
Then I switched to KDE, without reinstalling system. I was still able to connect to BT access point - broadband connection appeared in NM Plasma applet, right under wired and wireless connections.

Today I installed fresh Kubuntu, with KDE as default desktop environment. I paired my phone with laptop, but I can't see any option related to personal area networks. No new option in NetworkManager appeared. In NM advanced settings, broadband connections are grayed out and unclickable.

Any ideas how to fix this? I don't want to return to Gnome.