Variable Playback Speed

As Mark states at some point in this discussion, there are 2 parts in Storyline that both would benefit from giving the user the possibility to setting the speed. Videos and the timeline.

For videos there are several options with other players or Javascript to get it done.
For the timeline there is at this moment no option. However as Articulate uses GSAP internally to do almost everything animationwise, i strongly believe they use it too for the timeline.
And especially i suspect they do use the timeline feature of GSAP to create and control the timeline in Storyline.
https://greensock.com/docs/v3/GSAP/Timeline

Especially when you check slides.min.js you find evidence of that...

timeline: this.props.model.timeline()

On several spots...

s.add(gsap.timeline().to(n, {
x: e * (2 === t ? -1 : 1),
ease: "power2.out",
duration: i

And when you check bootstrapper.min.js you find more evidence...

wrapGsap: function(t) {
t.pause(),
t.totalTime = function() {
return i.toMilliseconds(t.duration())
}
,
t.stepAnimation = function(e, n) {
var r = i.toSeconds(e);
t.seek(r, !0),
t.render(r, !!n, !0)
}
},

So im quite sure the Storyline timeline is in fact a GSAP timeline. And i do think with GSAP and javascript i can make the speed of the timeline controllable. So speed it up, slow it down at will. However this will be quite some research endeavour and will involve javascript. If enough people are interested in a workaround like this...im gladly spent time and get it working. Will take some time though...