[OS X TeX] Compiling the master when hitting the compile button of the child?

[Gerben Wierda]

Gentle people,

If I have a document a.tex which includes a document b.tex with \include{b} and my main editing is in b.tex, I would like to inform TeXShop that when I hit the compile button in the b.tex edit window, it should instead compile a.tex

Constant switching between the buttons is a bit of a nuisance. A bit, but it would be nice if this was possible.

Is this possible?

Yours,

G