Hi X,
I have just reinstalled Xtheme and Updated Cornerstone and am now ready to start working on my pages - Cornerstone does not have the settings tab anymore - well I guess this is my question - have you removed it, or am I having an issue with Cornerstone?
If I am having an issue how can I fix it? Cornerstone is updated, all 3rdparty plugins deactivated.
Or, if the layout of Cornerstone has changed - where can I now control the things that were in the settings tab? Like Masthead Above/Below Slider, Responsive Text etc.
This is how I am seeing Cornerstone:

Many Thanks, hope to hear from you soon!

You are very welcome!