Paper UI Control section empty after adding Things


I’ve apt-get installed the latest OpenHAB2 snapshot and added bindings for zwave and lifx bulbs. The 5 LIFX lights amd 2 Z-Wave multisensors have appeared in the Inbox and I added them under Things but there is nothing under Control and I don’t understand what I should do now.

BTW, I’m running this on Rasbian Jessie on a Raspberry Pi 3.

EDIT: Simple Mode for linking was turned off. I turned it on, saved, removed a thing, re-added it and voila. It appeared in Control. Mind you I have absolutely NO idea how I would do that manually via the web interface,