Problem:
The user would like to restrict all users from accessing the wp-admin area.

Solution:
Toolset does not offer any way of restricting the backend for the site users. You can still achieve that using a 3rd party plugin or using custom code. Check the following links:

• https://wordpress.org/plugins/remove-dashboard-access-for-non-admins/
• https://wordpress.stackexchange.com/questions/98937/only-allow-administrators-and-editors-to-access-wp-admin
• https://www.wpbeginner.com/wp-tutorials/how-to-disable-wordpress-admin-bar-for-all-users-except-administrators/