Can we add more options to the Input Manager?

I like the way the Unity Build allows the user to alter his input preference. Under the project settings, can additional input options be incorporated into the Input Manager besides the six that are listed (ie Horizontal, Jump, etc). I realize that the six values can be changed but is there a way to inherit the Input Manager class in order to add more input options.

Can we add more options to the Input Manager?

Thanks CSDG

The list of inputs in the input manager is an array. Like all arrays, you can add, remove, and duplicate items.