You do that on URS distribution strategy rule, not Outbound itself…check URS strategies with Stats distribution (upper part of target object on IRD)
Check docs for call flows and components interactions.
Your post does not make a sense at all. What type of campaign are you using? If the campaign calls are distributed trough the routing strategy, you should configure the used statistics within target block as is standard.
I strongly recommend to you visit any Genesys training or learn more about Genesys.