Carry out the following steps:
Make sure that the advanced permission mode has been activated.
Navigate to your home page and enter the edit mode.
Click on Add to Sidebar and select Set Permissions, as shown in the following screenshot:
In the dialog, you'll see your default groups and every block including the actions read, write, and delete, as shown in the following screenshot:
By default, the editor group is allowed to add every block. Simply remove those you don't want your editors to use and confirm the changes by clicking on Update.
By using the area permissions, we've hidden some blocks from our editors. This can make the editing of concrete5 even easier.
If you're building a site for an inexperienced computer user, use this feature to hide some of the complexity and even a computer newbie is going to like working with you and concrete5.