Hey Björn,
now I see what you mean :)
Enabling the “Page Settings” box on projects would require some work since it was not envisaged it the theme initially, I can provide you with a solution, yet I cannot guarantee that I will implement it into the theme in the next version update. Please download this archive, unzip it, and upload all contained files into the theme folder, i.e. /wp-content/themes/Kanso.
Sincerely,
Andrii / Satori Studio