How do I juggle ball?

Hi guys, Can anybody help me?

I'm having trouble with a juggle ball on construct 2.

Here is an example for what ı want to do:

https://codecanyon.net/item/juggle-ball ... 4?s_rank=1

Thank you so much

First question: what is your target platform? Browser (mouse)? Or mobile (touch)?

Second question: what do you trouble with? Can't be everything. The start? How to keep the ball in the air? How to do the ball's movement?

For future posts, please provide more information.