Hi,
i assigned users to Joomla Group.
How can i do it that when writing a post only these categories will be displayed to select for the author?

Is this the solution for me?:

EasyBlog > Categories > [Choose the category] > Permissions tab. Then set Privacy as Assigned Joomla User Group

if yes, than it is bad, because this Privacy i have to change in every category. Why not a global permission tab for all categories or a global change?
In a single categorie then i can make special assigning when necessary.