Hi there!

I am using K2 for couple of years now and now upgrading from 2.4.1 to 2.5.7.
In the old version of K2 I made a change for my users when adding an item via front-end.
When they add a new article and choose a categorie, they only see the categories which are choosen in the usergroep (so the user don't see all the other categories they can't select)
Normally in K2 the other categories are in grey font.

Now my question is. Does anyone still knows where I can change this option again?
I know it is not standard K2 so I want to know what file I have to change.

My opinion is that it should be standard K2. ;)