How do I change settings? I need to restrict my group memberships?

I'd like to be able to approve new members to my yahoo groupHow do I change settings? I need to restrict my group memberships?
Go to Management, Membership, and then click on edit by the first item (Membership Type and Welcome Message). Then you can change the group from open to restricted. So members will have to fill out a reason for why they are joining and wait for you to approve them.How do I change settings? I need to restrict my group memberships?
management- under group settings click membership- Membership Type and Welcome Message (Edit) %26lt;-- click the edit- select restricted- click save changes