Im trying to make a brush button for a ipad game that will be center on the object. What it does is that you touch the object an rub it to make it activate something. Please help me I need help to make it happing.
Hey max 
If I understand you correctly, you’re trying to tap and rub an item with your finger, and have it do something?
Yes, and customize were the button goes. If you know what I can do to figure it out I would be so happy.
You can use a Touch Interface Setup to define out the object itself, however, having it move around is likely going to be a bit more involved than that.
In blueprints, you can take the tap input event and get its screen space location, Line Trace from that location for testing what you “tapped”
Thanks ill try that, but you wouldn’t know were I can fine out more about how to use Touch Interface Setup.
Hey max, check out the docs here - https://docs.unrealengine.com/latest/INT/Gameplay/Input/index.html#touchinterface
Also - feel free to search at the top ofdocs.unrealengine.com - it checks the wiki, the forums, the AnswerHub, and the docs themselves