So far you have seen the options available to you in the control panel for different member groups. For members with control panel access, the options are very comprehensive — you can disable entire sections (such as template editing) or disable individual items within a section (such as which template groups can be edited or which fields on the Publish page are visible).
For members without control panel access, it is up to you how attractive you make the membership of your site, because any member-only feature has to be specifically coded that way in your templates. There are two ways you can restrict what non-members can see:
1. You can configure templates to not be viewable by certain member groups. If a person in an unauthorized member group attempts to access one of these templates, you can redirect them to a different template that says the content is for members only. From the Template Manager, where you would normally click to edit the template, click...