Adding buttons to bottom navigation

Hi All,

I have found myself wanting to add a button to the players bottom navigation options beyond the Previous, Next and Submit options.  I have gone in and changed the Submit option to be Main Menu and changed the action to jump to the Main Menu slide I have created.

Wondering about a couple of things with this.

1. Is there a way to create additional button options within the player that will be added to each slide other that Prev, Next and Submit?

2. Also, is there a way to create a default action that is attached to that button so that I dont have to go into each slide and alter that trigger?  For example, my Main Menu button I have to go into each slide and manually update the trigger action.  I can't find a way to create the action and then propagate it for all instances of that button throughout the project.

Thanks for any guidance on this.

Steve