Need help with creating a sleep calculator (Was: Please suggest a solution to implement this idea..)

Hey Guys - I'm making a Sleep calculator. But I'm scratching my head trying to find the best solution to implement this with Edge Animate.

Simply, I want to have the slider in the middle, animate the background. So that dragging it left and right changes the time of the day. Dragging left, the background image would be night and right the day for example.. obviously the time etc will change too.

So I need to figure out how in edge I create a slider and tie that into an animation timeline. I'm unsure what the best method will be??

Any ideas would be very much appreciated!