Map question~

First,I have to say thanks to trane, diabloo,mastershouter,fxxker13 and seraphtom.After read guys posts that really helped me a lot!!
but i still have a problem with this game :
The problem is :How can I change the dungeon min menber ?
for example: The cherubim map it limit the min member(12)? can i change it?
if it can be change, how to do it?
thanks !!

It's serversided, you can't do it by client editing

Perhaps u know what is min member for expedition