probability of presence - group

[macguba]

How can you apply a probability of presence to a group?    Or, put it another way, how can I make the probability of a dude appearing = 1 if the leader is present but = 0 if the leader is not present.   I think I need to put something in his condition of presence field but I don't know what.

I'm trying to create a patrol that may or may not exist.

Thanks

[LCD]

just put in his condition field - alive nameofgroup leader  ;D should do  ;D

LCD OUT

[macguba]

Bingo    

Thanks m8