GWT Compile: Skip mobile / tablet permutation

Hi Guys,

i know the user.agent property for compiling less permutations.
I build a compile report (http://www.gwtproject.org/doc/latest/DevGuideCompileReport.html) and found permutations with the 'formfactor' : 'tablet' and 'mobile'.
Can i exclude also these permutations.
I haven't found a property for these.

Thanks for your help, bye