Re-positioning slides in the Storyline Menu (in the player)

Hi,

I'm new to Storyline.

I am building a prototype eLearning course for my team. I created a title slide, a home/welcome slide, and five overview slides that branch off from the home/welcome slides. Each overview slide has 2-3 content slides underneath it. I did this to create modules that the student can move between. In Story View, everything looks as expected. However, when I previewed my prototype, I noticed that the menu in the player presented the slides in a different order, and the navigation using the < and > buttons on the player followed the order in the menu. Not what I was expecting!

I have since cleaned up some issues with the player triggers, and figured out how to manually re-arrange my slides in the player menu properties, so now that behaves as expected. 

My question: is there a way to ensure that Storyline adds the slides to the menu in the order that I prefer while I'm creating the overall structure? That way I don't need to rely on the menu properties to re-arrange the slides manually?

I attached a screenshot of the buttons I used to re-arrange the slides.

Thanks!

John