Insert Transform to a game object?

How i can do this?

I have enemies and whith this script i choose the enemies whith tab

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class Targeting : MonoBehaviour {
public List targets;
public Transform selectedTarget;
private Transform myTransform;
// Use this for initialization
void Start () {

	targets = new List<Transform>();
	selectedTarget = null;
	myTransform = transform;
	AddAllEnemies();
	

}

public void AddAllEnemies() {
	GameObject[] go = GameObject.FindGameObjectsWithTag("Enemy");
	foreach(GameObject enemy in go)
	AddTarget(enemy.transform);
		
}

public void AddTarget(Transform enemy){
	targets.Add(enemy);
	
}



private void SortTargetByDistances(){
	
	targets.Sort(delegate(Transform t1 , Transform t2){
		return Vector3.Distance(t1.position, myTransform.position).CompareTo(Vector3.Distance(t2.position, myTransform.position));
	});
}

private void TargetEnemy(){
	
	if (selectedTarget == null)
	{
		SortTargetByDistances();
		selectedTarget = targets[0];
	}
	else
	{
		int index = targets.IndexOf(selectedTarget);
		if (index < targets.Count -1){
			index++;
		}
		else
		{
			index=0;
		}
		DeselectTarget();
		selectedTarget = targets[index];
		
	}
	
	SelectTarget();
	
}

private void SelectTarget(){
	selectedTarget.renderer.material.color = Color.green;
	**//PlayerAttack pa =(PlayerAttack)GetComponent("PlayerAttack");
	//pa.target = selectedTarget.gameObject;**
	
}

private void DeselectTarget(){
	selectedTarget.renderer.material.color = Color.blue;
	selectedTarget = null;
}


// Update is called once per frame
void Update () {
	
	if(Input.GetKeyUp(KeyCode.Tab)){
		
		TargetEnemy();	
	}

}

}

I show in the Inspector that when i pres tab this choose the enemies!

//PlayerAttack pa =(PlayerAttack)GetComponent(“PlayerAttack”);
//pa.target = selectedTarget.gameObject;

i want to insert "selectedTarget " to the target the target is agame object

the PlayerAttack script is:

using UnityEngine;
using System.Collections;

public class PlayerAttack : MonoBehaviour {

public GameObject target;

public float attackTimer;
public float coolDown;

// Use this for initialization
void Start () {
	
	attackTimer = 0;
	coolDown = 2.0f;

}

// Update is called once per frame
void Update () {
	
	if (attackTimer > 0)
		attackTimer -= Time.deltaTime;
	
	if (attackTimer < 0)
		attackTimer = 0;
	
	if (Input.GetKeyUp(KeyCode.F)){
		if (attackTimer == 0){
			
		Atack();
		attackTimer = coolDown;
			
		}
	}
	
//float distance = Vector3.Distance(target.transform.position,transform.position);
//if (distance > 5){
//	EnemyHealth eh1 =(EnemyHealth)target.GetComponent("EnemyHealth");
//	eh1.AddjustCurrentHealth(0.5f);   
//	}
}

private void Atack()
{
	float distance = Vector3.Distance(target.transform.position,transform.position);
	
	Vector3 dir = (target.transform.position - transform.position);
	float direction = Vector3.Dot(dir , transform.forward);
	
	if (distance < 2.5f){
		
		if (direction>0){
			EnemyHealth eh =(EnemyHealth)target.GetComponent("EnemyHealth");
			eh.AddjustCurrentHealth(-10);
		}
	
	}
	
}

}

how i can fix this?

maybe in your Atack void :

target = GetComponent<Targeting>().selectedTarget.gameObject;