@Silveras: Not quite what my GM had in mind, but thanks for the tip.
@DeltaMasterMind: That worked very, very nearly. I added your mechanic and got the following (
screenshot) that I got a second class, but still could only choose either 1 hp or 1 sp.
Changing the race to Half-Elf got this (
screenshot) which added a 3rd favored class (great) and all the possible bonuses to choose from.
Anyway, many thanks for the mechanic.
I have no idea how to get all the bonuses in the drop down menu but perhaps someone will know and reply to this thread.
[EDIT]Just realised while writing this that the other bonuses are racial in nature as I just went and chose a dwarf to see what happens. In other words this solution works perfectly!!
[/EDIT]