Hiding Slides from Player

Hi all,

Quick question. I'm very new to Storyline and am in the process of creating my first lesson. Something i'd like to know is how i can hide some slides from appearing within the player. What i'm looking to do is have some screen recordings of some of our systems being used, preferably in "try it" modes. To gain access to them I have created a navigation slide with buttons to each recording. My issue is that when i preview the project the player displays the recordings in the menu bar, is there a way i can hide these?

If not, does anyone know of a work around?

Kind Regards

Frankie