Manipulator helpers are objects you can create to manipulate other objects. They let you add customized controls to your scene that provide visual feedback in viewports. To control other objects, manipulators use the parameter wiring feature.
Manipulators can be especially useful when you create a scene that will be used by more than one animator.
There are three kinds of manipulator helpers: Cone Angle, Plane Angle, and Slider.
The Cone Angle manipulator is a cone whose base you can adjust. By wiring its Angle value to a parameter of another object, you can create a custom control, with visual feedback, within a scene.
The Plane Angle manipulator looks like a lever or joystick. By wiring its Angle value to a parameter of another object, you can create a custom control, with visual feedback, within a scene.
The Slider manipulator is a graphic control that appears in the active viewport. By wiring its Value to a parameter of another object, you can create a custom control, with visual feedback, within a scene.
Create panel 
(Helpers)