What do you want to achieve?
I would like to have the ability to have an animation play continuously until another event tells it to stop
Mention some use cases
I am making a control panel for turning vacuum motors on and off and monitoring their temperature and current draw. The button on the UI is an image of a fan motor that I have animated the blades to rotate while the fan is on and stop when I hit the button again to stop the motor however currently the animation will only run for whatever time it is set for and then stops.