title: Dynamics Ax Appendable lookup
body: <p>I Have a table with a relationship set for a field which gives me the lookup.
  Within the validateWrite(), i am returning true if that field is being validated, so that it doesn't throw any error.</p>
  
  <p>Now I want to allow the user to add a "comma" and drop down again, selecting another (or same) value, however when selected it appends to the original value.</p>
  
  <p>I have tried doing this in the Modified() method, appending the text of the this.Orig(), however this.Orig() retrieves the last saved record in the Database, and not the current value.</p>
  
  <p>An example of this is the Query selection window, which is a standard Ax form and allows for this.</p>
  
  <p>So is this possible?</p>