how to get the default third person character controller in unity 5 to move in midair

The standers unity 5 third person character controller is setup to only be controlled by movement when its grounded. I have tried changing the code to remove "is grounded" in different places in the script but nothing could work. I under stand i have to change the script somehow to allow midair movement but I don't know how to use rigid-body character controllers very well and some help would be appreciated.

here is the code that handles the jumps-

 void HandleGroundedMovement(bool crouch, bool jump)
     {
         // check whether conditions are right to allow a jump:
     if (jump && !crouch && m_Animator.GetCurrentAnimatorStateInfo(0).IsName("Grounded"))
         {
         // jump!
         m_Rigidbody.velocity = new Vector3(m_Rigidbody.velocity.x, m_JumpPower, m_Rigidbody.velocity.z);
         m_IsGrounded = false;
         m_Animator.applyRootMotion = false;
         m_GroundCheckDistance = 0.1f;
     }
 }
 

and hears the code that handles the mid air movement-

 void HandleAirborneMovement(bool crouch, bool jump)
        {
     // apply extra gravity from multiplier:
     Vector3 extraGravityForce = (Physics.gravity * m_GravityMultiplier) - Physics.gravity;
     m_Rigidbody.AddForce(extraGravityForce);
 
     m_GroundCheckDistance = m_Rigidbody.velocity.y < 0 ? m_OrigGroundCheckDistance : 0.01f;
 
 }

I have looked throw the script and cant find were the movement is calculated, as I said I am not used to using rigid-body character controllers