How do I change group settings?

There are many settings you can start here. You could edit posting options so that all first posts are moderated. Click management lower left column on your cover page , in the next window under group settings click messages beside posting and archives click edit. scroll down under moderation check new members click save changes. When anyone attempts to post an abusive message ban them. you can always remove the moderation off your good members later. when you are in the settings section you will see other choices. Check your selections and save.