For example in the shooting gene.
cond
*.eye5 25 >
*.refeye 0 !=
start
-1 .shoot store
stop
explanation
cond: start gene
*.eye5 25 > check oponent close
*.refeye 0 != check is it a veggy if not go thru
start go if conditions are true
-1 .shoot store :shoot
stop :end gene
for just changing a bot behaviour to herbovore
put this in the shooting gene.Between cond and start.
*.refeye 0 !=
Hope this helps.