How to disable points for users in all channels except one.

[sledge1#0]

I want to reward users that post in a certian channel. How can i make it so all other channels on the server earn no points except for one? Is this even possible? I want to make the store points more valuable and have them earn the points from being helpful. 

[isidar#0]

I want to say that there is a command to do it more easily, but it has been so long since I poked at that stuff, which was also before the / thing, I am no longer sure of it.
But you can block them by going to the dashboard: server- modules- rewards & economy- score & points. Then add the channels you don't want them to earn points in.