Uncaught TypeError: Cannot read property 'prototype' of undefined.
Looking at the source code, you should probably check if there even is a TiledBackground in a project at all.
Viewing post in Baby 3D Plugin for Construct 2 comments
The way you manipulate cameras is via events mainly by setting camera position and camera target. Some actual rotation actions are still missing though as you noticed.
Edit: rotation actions and camera behavior were added in the latest update.
Unit resolution of 1 is probably a bad idea as you most likely wouldn't want a single pixel representing a unit in the 3D world. Didn't freeze for me when I quickly tested with the example project though.