Workshop Questions

So i have some Questions about some more Deeper Workshop.

For example i am currently trying to remade Ana, just for practice. My current idea would be using the Sleep Dart and wherever it hits ana Get´s teleportet there. I looked around and didnt found anything with which i can realte to Objects like the Sleep Dart or moiras Balls. Any Ideas?

Second is disabling for example the execution of Ultimates or Ability Animation.
For Example, when i use Moiras Ultimate i want to use the Displayed Ult Charge and all but i dont want the giant kame hame haaa, just…maybe a time slow down.