[OS X TeX] Tabbed files in TeXShop

[Ulrich Groh]

Trying to use the tabbed file feature in TeXShop I put 

% !TEX TS-program = pdflatexmk
% !TEX useTabsWithFiles
% !TEX tabbedFile{~/content/1-Theory.tex}(Kap1)

in my TeX-File, restarting, but nothing happens. If I use

% !TEX TS-program = pdflatexmk
% !TEX useTabs

everything works fine. 

Ulrich