How to Instantiate an editable text field

Hey im trying to make a program that makes a list of projects but I can't figure out how to make a editable text field that i can Instantiate over and over. This is what I have gotten to. Any ideas?

 #pragma strict
 // Inspector Variables
 var numberOfProjects         : int         = 1;                        // Number of projects you have
 var projectSelecterXPos      : float;                                // X postions for all project selecter buttons
 var projectSelecterYStartPos : float;                                // the starting y position that the NewProject function is based on
 var projectSelecterGap         : float;                                // the gap between your project selecter buttons
 var projectNameList          : String      = "Project Name List ";    // name of the box that hold your projects
 var projectSelecterButton      : Transform;                                // needed to make copys of text box
 
 // Private Variables
 private var projectManagerArray            = Array(numberOfProjects); // may be needed later. not used yet
 private var numberOfProjectsHolder        : int         = 0;           // needed to hold a number for NewProject function    
 function Start () 
 {
     guiText.transform.position = Vector3(projectSelecterXPos,projectSelecterYStartPos,0);
     guiText.text = projectNameList;
 }
 
 function Update () 
 {
     NewProject();
 }
 
 function NewProject()
 {
     if(numberOfProjects>numberOfProjectsHolder)
     { 
         var projectSelecterYPos     = Array(numberOfProjects);
         var x = projectSelecterYPos.length;
         Instantiate(projectSelecterButton,Vector3(projectSelecterXPos,projectSelecterYStartPos - x * projectSelecterGap, 0), Quaternion.identity);
         numberOfProjectsHolder++;
     }
 }