You can add and manage the Admin Roles from the Settings -> User Management -> Roles. 
Under “Roles”, you can check the added roles. Other Admin /sub-admin users can also add the user’s role as per the rights.
To create a new role for the admin users, click on + Create button. 
Insert the Role details and provide the user rights for the different roles from the Role matrix.
Once you enable the Module’s view, you can assign the rights to Add/Edit/Delete as per requirement.
The admin users can access only those modules for which the rights are given here.
Note: if the super admin user has been assigned the rights to add the roles, only the other admin user will get the right to add the user’s role.
You can also assign the Add/Edit/Delete rights for the Admin Module under the “Admin Views” Grid. Admin users can access the “Module” section per the assigned rights. 
After configuring all the information, Save the details.