On the authoring page view, after selecting a page to edit, we want to hide the properties toolbar button option for a specific group. What is the way to customize the toolbar based on user access rights?
you can directly deny the read permission of /libs/wcm/core/content/sites/jcr:content/actions/selection/viewproperties node for those groups.
Refer below node which displays the option in nav only if the user has read access to /etc/workflow/models
Hope this helps