Please follow the instructions below to allow or prevent a user group from editing their posts:

1. Log in to your Website Toolbox account.
2. Click the Users link in the main menu.
3. Click on the Manage link next to the user group you want to change the permissions for.
4. In the Manage menu, click Permissions.
5. Under the User's Topics & Posts section, turn the Edit Own Posts permission on or off.
6. Save your changes.

There is also a time limit which prevents old posts from being edited by users.