Insert audio on demand in Articulate Storyline

Hi there,

I have some audio clips that I have on a button in Articulate Storyline because I want the user to play them on demand and not automatically when the slide starts. I've added pause and play buttons but it looks a bit clunky. 

I was wondering if there is any way to insert audio to a slide to make it look like it looks when you insert audio on demand in Rise like this:

I had a look at the slider but it doesn't seem to work like this.

Anyone managed this? 

Thanks,

Aimee