To add a component (RadEditorWebPart) to the Web Part gallery:
Verify that you have the following administrative credentials:
- You must be a member of the Farm Administrators group.
Navigate to http://<MyServer>/_layouts/newdwp.aspx, where <MyServer> is the name of the server on which your SharePoint site is deployed.
Select the check box next to <YourWebPartNamespace>.<YourWebPartName>. In your case
Click Populate Gallery to add the YourWebPartName Web Part to the Team Site gallery.
Then you will see the RadEditorWebPart.dwp entry in the WebPart Gallery where you will be able to edit the permissions.
the Telerik team