Running multiple timelines at the same time.

[Yes!]

Is it possible to run multiple timelines at the same time?

[GreenSock]

Absolutely. There is no limitation on how many you can run at the same time. Or you can nest them, sequence them, whatever. Super flexible. 

[Yes!]

Great! Can you point me to a resource on how to run multiple timelines at the same time?

Basically, in pixi.js, I want to run one timeline tween set on a background element and a 2nd timeline set on foreground elements. The tweens will be dictated by the y position of a pixi.Point driven by the scrolling mouse or arrow keys.

[Carl]

hmm, I think we are either not understanding the question or you need to word it differently.

You just need to create 2 timelines and they will run totally independently of each other

var bgTimeline = new TimelineLite();
bgTimeline.to(background, 1, ({x:200});

var fgTimeline = new TimelineLite();
ggTimeline.to(foreground, 1, ({x:400});