I'm using joomfish, so K2 front-end editing feature is disabled now. I have 5 or 6 people that need to create items, edit, and publish. I've created several back-end "manager" users for them. The trouble with this is that i've found that even the "managers" have access to stuff like Categories and other things that these users should not have accesss to. I though that maybe administrator modules could be set visible only for a kind of users (For example, "managers" can't see them), but in fact, this is not possible.Other thing is that all the user/group/categories thing doesn't seems to work with back-end users. I found that, a user that only is able to create and edit items of a single category, actually can creating, editing and publishing in all the categories available. It's awful!!!Good advice needed!