We are trying to narrow down the cms for a client who has specific requirements which are below
They need people to login to the admin area with different user roles.. we see you can do this in silverstripe and then set what permissions they have, one thing my client wants is the ability for just the overall administrator to publish the content, everyone else... or everyone within a different group only to be able to save... is this possible to switch off the publish button for everyone except certain groups?
is it also possible for people within a group to only see certain parts of the admin.... I know we can turnoff comments, reports etc access.. but what about in editing pages... can we turn off translations, access... reports.. metadata for certain groups so they literally just can edit the page and click save
I dont know if you can hide tabs as such as I haven't used the permissions system in the backend alot but you do have access to a couple functions like canView(), canPublish(), canEdit() that you can use for permissions such as hiding publishing actions etc.
You might find the cms workflow module quite handy for this http://doc.silverstripe.com/doku.php?id=modules:cmsworkflow
You can achiev those things already by adding some simple code to your page.php model class.
To remove tabs from users that are not admins I do this:
You could easily extend this to chech for groups by doing Member::currentUser->inGroup($GroupID) or if you needed to be able to assign groups permission rights from with the CMS you could create a new permission role (see the forum module) and use Permission::check('YourRoleName')
To remove publish rights you can use the canPublish() function in your page model like so:
Again this can be extended to take groups into account.