[zarlor]

There should be a field for it, set to "field[hinMajor].value = 1" if true.
So at a guess you could start figuring it out from something like:

   foreach pick in hero from Hindrance
      validif (eachpick.field[hinMajor].value <> 0)
   nexteach

Well, something in that vein, anyway, although that example would validate on any Major hindrance so you'd presumably knock it down to just the Hindrance you want. Maybe something like this to narrow down to just the hindrance you need:

   foreach pick in hero from Hindrance
      if (hero.tagis[Hin.hinNCNepot] <> 0)
         validif (eachpick.field[hinMajor].value <> 0)
      endif
   nexteach
if (@ispick <> 0) then
   altpick.linkvalid = 0
endif

Or maybe there is a way to make that simpler, but I'm not quite sure on that right now. And I'm not positive if this is a situation where you would need the altpick code, but it probably wouldn't hurt anyway.