Hidden a category in Knowledge Base

[febern]

Hello!

I'm collecting my lyrics in Knowledge Base and linked in the navigation board.

I would like to hidden this lyrics category in Knowledge Base to visible only from navigation board. I mean if someone straight goes KB (which is visible for everyone) can't see my lyrics category, but if he clicks on lyrics section on navigation board that show the real link of Lyrics in KB (which is visible for registered). i hope it's clear what i would like to write..........


Can someone help me, please???