Hi there, you may get better responses if you ask the questions directly.
Your question about getting objects to move to your input?
1. Add an Input Component
2. Register your keyboard inputs in the SignalGraph by using the Input Component RegisterKeyboardInput nodes.
3. you can then use the Signals from the Input Component, and check the Action Name you gave and use the RigidBody nodes ApplyImpulse to move the object.
Let us know if this helps or if you have more questions about this