I pasted the complete controller code.As i said it is from the sample assets.The lines i added do not work,so i commented them out.WASD movement works.Point and click movement should be easy to add,but i am to unexperienced to get it working. Thanks for help.

using UnityEngine; using UnitySampleAssets.CrossPlatformInput;

namespace UnitySampleAssets.Characters.ThirdPerson {

 [RequireComponent(typeof (ThirdPersonCharacter))]
 public class ThirdPersonUserControl : MonoBehaviour
 {

     public bool walkByDefault = false; // toggle for walking state

     public bool lookInCameraDirection = true;// should the character be looking in the same direction that the camera is facing

     private Vector3 lookPos; // The position that the character should be looking towards
     private ThirdPersonCharacter character; // A reference to the ThirdPersonCharacter on the object
     private Transform cam; // A reference to the main camera in the scenes transform
     private Vector3 camForward; // The current forward direction of the camera

     private Vector3 move;
     private bool jump;// the world-relative desired move direction, calculated from the camForward and user input.

     // Use this for initialization
     private void Start()
     {
         // get the transform of the main camera
         if (Camera.main != null)
         {
             cam = Camera.main.transform;
         }
         else
         {
             Debug.LogWarning(
                 "Warning: no main camera found. Third person character needs a Camera tagged \"MainCamera\", for camera-relative controls.");
             // we use self-relative controls in this case, which probably isn't what the user wants, but hey, we warned them!
         }

         // get the third person character ( this should never be null due to require component )
         character = GetComponent<ThirdPersonCharacter>();
     }

     void Update()
     {
         /*if(!jump)
             jump = CrossPlatformInputManager.GetButtonDown("Jump");*/
     }

     // Fixed update is called in sync with physics
     private void FixedUpdate()
     {
         // read inputs
         bool crouch = false;

         float h = CrossPlatformInputManager.GetAxis("Horizontal");
         float v = CrossPlatformInputManager.GetAxis("Vertical");
         crouch = Input.GetKey(KeyCode.C);

         /*if (Input.GetMouseButton (0)) {
             RaycastHit hit;
             Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
             if (Physics.Raycast (ray, out hit, 1000)) {
                 move = new Vector3 (hit.point.x, hit.point.y, hit.point.z);
             }
         }*/

         // calculate move direction to pass to character
         if (cam != null)
         {
             // calculate camera relative direction to move:
             camForward = Vector3.Scale(cam.forward, new Vector3(1, 0, 1)).normalized;
             move = v*camForward + h*cam.right;
         }
         else
         {
             // we use world-relative directions in the case of no main camera
             move = v*Vector3.forward + h*Vector3.right;
         }

         if (move.magnitude > 1) move.Normalize();

if !MOBILE_INPUT

        // On non-mobile builds, walk/run speed is modified by a key press.
         bool walkToggle = Input.GetKey(KeyCode.LeftShift);
         // We select appropriate speed based on whether we're walking by default, and whether the walk/run toggle button is pressed:
         float walkMultiplier = (walkByDefault ? walkToggle ? 1 : 0.5f : walkToggle ? 0.5f : 1);
         move *= walkMultiplier;

endif

         // calculate the head look target position
         lookPos = lookInCameraDirection && cam != null
                       ? transform.position + cam.forward*100
                       : transform.position + transform.forward*100;

         // pass all parameters to the character control script
         character.Move(move, crouch, jump, lookPos);
         jump = false;
     }
 }

}