Hi,
I've enabled the MB Settings extension... but how do I use it?
Can't find any manual on that.
Even documentation refers only to a short intro, but doesn't explain how to use that.
Unfortunately, creating setting page requires coding. It's just 10 lines of code and you can go to Appearance > Editors to add them into your theme's functions.php file.
Then you can use the MB Builder to create fields for settings page using GUI and finally use BB Themer to get the settings and show them on the front end.