WordPress Restrictions allows you to set restrictions on when and what content can be edited/deleted on your WordPress Install.

Force minimum and maximum pricing requirements on FES product submissions.

Restricts coupons usage to specific countries in WooCommerce plugin.

Restrict Page Parents restricts page parent options to those owned by the user, with the option of forcing a page parent.

Restrict the usernames that new users may use when registering for your site.

Easily control who can purchase your products based on iThemes Exchange Memberships.