Dropdown populate field, make field editable

I have a form which I have created that has a custom calculation script that fills a text field with a different line of text depending on a selection from a dropdown menu. I have this working well but I want to know id there a way that I can make the text editable after a selection is made as minor details may need to be changed.

This is my code:

var v1 = this.getField("Dropdown36").valueAsString;

var v2 = this.getField("Dropdown38").valueAsString;

var val = "";

if (v1=="limited") {

  if (val.length > 0) val = val + "\n";

  val = val + "limited number outcome";

}

if (v1=="basic") {

  if (val.length > 0) val = val + "\n";

  val = val + "basic number outcome";

}

if (v1=="sound") {

  if (val.length > 0) val = val + "\n";

  val = val + "sound number outcome";

}

if (v1=="high") {

  if (val.length > 0) val = val + "\n";

  val = val + "high number outcome";

}

if (v1=="outstanding") {

  if (val.length > 0) val = val + "\n";

  val = val + "outstanding number outcome";

}

if (v2=="limited") {

  if (val.length > 0) val = val + "\n";

  val = val + "limited measurement outcome";

}

if (v2=="basic") {

  if (val.length > 0) val = val + "\n";

  val = val + "-basic measurement outcome";

}

if (v2=="sound") {

  if (val.length > 0) val = val + "\n";

  val = val + "- sound measurement outcome";

}

if (v2=="high") {

  if (val.length > 0) val = val + "\n";

  val = val + "high measurement outcome";

}

if (v2=="outstanding") {

  if (val.length > 0) val = val + "\n";

  val = val + "outstanding measurement outcome";

}

event.value = val;

Thanks very much