This script by JETDV has been very helpful to me, its main function is to copy velocity envelopes. But now, I want to change its function to "copy volume envelopes" so I need your help in scripting knowledge here, or maybe someone has this type of script already. I have Vegasaur but I do not know if it have this functionality.

Edit: Sorry edited my post, I want to change it to be able to 'copy volume envelopes'

/**
 * Copy Velocity Envelope Nodes
 *
 * Written By: Edward Troxel
 * www.jetdv.com/tts
 * Modified: 03-31-2004
 * Copyright 2004 - JET Digital Video
 * www.jetdv.com/tts
 **/

import System;
import System.IO;
import System.Windows.Forms;
import ScriptPortal.Vegas;



try {
/*STUNNIX-OBFUS-ENCODED-BEGIN*/

  var evnt = FindSelectedEvent();
  if (null == evnt)
      throw "no selected event";

  var vevnt : VideoEvent = VideoEvent(evnt);

  // Find the velocity envelope
  var VelEnv : Envelope = FindVEEnvelope(vevnt, EnvelopeType.Velocity);
  if (null == VelEnv)
        throw "no velocity envelope";

  // Get the existing points in the selection area
  var EnvPts = VelEnv.Points;  
  var cPts = VelEnv.Points.Count;
  var ii, arcount;

  var arTC = new Array(cPts);
  var arY = new Array(cPts);
  var FirstInArea : Timecode = Vegas.SelectionStart + Vegas.SelectionLength;

  arcount = 0;
  for (ii=0; ii < cPts; ii++) {
          arTC[arcount] = EnvPts[ii].X;
          arY[arcount] = EnvPts[ii].Y * 100;
          if (EnvPts[ii].X < FirstInArea)
              FirstInArea = EnvPts[ii].X;
        arcount++;
  }

  // Now locate the next event
  evnt.Selected = false;
  evnt = FindSelectedEvent();
  if (null == evnt)
      throw "no selected 'TO' event";

  vevnt = VideoEvent(evnt);

  // Find the velocity envelope
  VelEnv = FindVEEnvelope(vevnt, EnvelopeType.Velocity);
  if (null == VelEnv) {
    VelEnv = new Envelope(EnvelopeType.Velocity);
    vevnt.Envelopes.Add(VelEnv);
  }




  // Set each point in the series
  for (ii=0; ii < arcount; ii++) {
    var BasePoint : Timecode = new Timecode(0);
    var NewPoint : Timecode = (BasePoint + (arTC[ii] - FirstInArea + evnt.Start) );
    SetVelocityPoint(NewPoint, arY[ii]);
  }

/*STUNNIX-OBFUS-ENCODED-END*/
} catch (e) {
    MessageBox.Show(e);
}

function FindSelectedEvent() : TrackEvent {
  var trackEnum = new Enumerator(Vegas.Project.Tracks);
  while (!trackEnum.atEnd()) {
    var track : Track = Track(trackEnum.item());
    var eventEnum = new Enumerator(track.Events);
    while (!eventEnum.atEnd()) {
      var evnt : TrackEvent = TrackEvent(eventEnum.item());
      if (evnt.Selected) {
          return evnt;
      }
      eventEnum.moveNext();
    }
    trackEnum.moveNext();
  }
  return null;
}

function FindVEEnvelope(mevnt : VideoEvent, etype : EnvelopeType) : Envelope {
  var envEnum : Enumerator = new Enumerator(mevnt.Envelopes);
  while (!envEnum.atEnd()) {
    var env : Envelope = envEnum.item();
    if (env.Type == etype) {
        return env;
    }
    envEnum.moveNext();
  }
  return null;
}

function SetVelocityPoint(markLoc, markLabel) {
/*STUNNIX-OBFUS-ENCODED-BEGIN*/
  var PointSpeed = parseFloat(markLabel) / 100;

  var trackEnum = new Enumerator(Vegas.Project.Tracks);
  while (!trackEnum.atEnd()) {
    var track : Track = Track(trackEnum.item());

    if (track.IsVideo()) {
      var eventEnum = new Enumerator(track.Events);
      while (!eventEnum.atEnd()) {
        var evnt : TrackEvent = TrackEvent(eventEnum.item());

        if (evnt.Selected) {
          if ((evnt.Start.ToMilliseconds() < markLoc.ToMilliseconds()) & ((evnt.Start.ToMilliseconds() + evnt.Length.ToMilliseconds()) > (markLoc.ToMilliseconds()))) {
            var vevnt : VideoEvent = VideoEvent(evnt);

            // Find the velocity envelope - add if needed
            var VelEnv : Envelope = FindVEEnvelope(vevnt, EnvelopeType.Velocity);
            if (null == VelEnv) {
                VelEnv = new Envelope(EnvelopeType.Velocity);
                vevnt.Envelopes.Add(VelEnv);
            }

            var PointLoc : Timecode = markLoc - evnt.Start;
            var a : EnvelopePoint = VelEnv.Points.GetPointAtX(PointLoc);

            if (a == null) {
              a = new EnvelopePoint(PointLoc, PointSpeed);
              VelEnv.Points.Add(a);
            } else {
              a.Y = PointSpeed;
            }

          }
        }
      eventEnum.moveNext();
      }
    }
    trackEnum.moveNext();
  }
/*STUNNIX-OBFUS-ENCODED-END*/
}