here i have a little ‘extra’. i’ve added a read only access lock for screen and scene properties in the header of info panel (see image) by modifying the vanilla version of space_info.py that comes with the 2.78 install.
to enable this functionality:
- download the package below
- backup the file <your blender install directory>\2.78\scripts\startup\bl_ui\space_info.py (important !!!)
- copy the file from the package to <your blender install directory>\2.78\scripts\startup\bl_ui\
- optional - if something goes south, just copy the original back
otherwise enjoy protected screens and scenes 
if you already have this file modified, i guess you will know exactly what to transfer over, furthemore i’ve tried to comment the changes as clearly as possible.
download: space_info_blender2.78.zip (3.4 KB)
enjoy 