Yep .. I've realised that there are a couple of minor hiccups with the sheet (I'll upload a new one when I finally have time).
The cost calculation for all skills is referencing an absolute value (I$6). This absolute value should change per category.
so ...
Artistic should be I$6
Athletic should be I$19
Combat should be I$27
Concentration (and each psionic discipline) should I$46
General should be I$54
Influence should be I$86
Outdoor should be I$92
Physical should be I$107
Scientific should be I$114
Subterfuge should be I$127
Technical should be I$143
Vehicular should be I$154
The following entry is the current entry for the skill cost of the first general skill
=(IF(A55+B55+C55+D55+F55>F$3,MAX(F$3-A55-B55-C55-F55,0),D55)+0.75*C55)*IF(I$6="Favored Category",2,4)
change this to
=(IF(A55+B55+C55+D55+F55>F$3,MAX(F$3-A55-B55-C55-F55,0),D55)+0.75*C55)*IF(I$54="Favored Category",2,4)
and then drag this cell down to the bottom of the general category.
rinse and repeat for each category.
There are a small number of other errors in the sheet; I do intend addressing those in the next version - but I'm very busy with real life (I'm working full time and studying for a MSc) so I can't guarantee a timeframe for delivery ...