If you want to set up different user or group rights in your subnodes, you can do this with the 'Switch inheritance on/off' button.
Within Assigning user rights and Create user groups the user rights are passed on to the subnodes (inherited) by default.\\
However, if you want to map individual rights for users or groups to your subnodes, you must activate inheritance and can then
Add or remove individual rights for the desired subnode.