Yes it could. I'd do it, but after doing a custom script for "Sebaz" and then finding that he only complained about it, even though the script will work perfectly if he just takes the time to change the extension to "js"

So, unfortunately, I'm not doing any more custom scripts.

However, you will find scripts I have done in the past, and if you have any programming experience, all you have to do is take a script I wrote which selects the event under the cursor and simultaneously deslects all other events, and then combine it with another script I wrote which selects all events that come from the same media as the first selected event on the timeline. That should give you what you want: every event that comes from that same media is now selected. The script that selects all the media only selects events after the current event, so you'll need to remove the:

if (evnt.Start.ToMilliseconds() >= dStart)

statement so that all events on the selected timeline are selected. Actually, if you make that change, you can use the two scripts as is, assign them to two different keys, and get what you want with two keystrokes instead of one. So, you are 98% of the way towards a single-keystroke solution.

/** 

* PURPOSE OF THIS SCRIPT:

*

* Select event at cursor, and de-select all other events.

*

* A video track must be selected. If an audio track is selected, nothing happens.

* If the track beneath the video track contains audio, the audio event in that track 

* that lies beneath the cursor will also be selected.

*

* Copyright © John Meyer 2004

* Written: September 23, 2004

*

**/ 



import System; 

import System.IO; 

import System.Windows.Forms; 

import Sony.Vegas; 





try { 



    //Global declarations

    var dStart : Double;

    var dLength : Double;

    var dCursor : Double;

    var trackEnum : Enumerator; 

    var evnt : TrackEvent;

    var CurrentEvnt : TrackEvent; 

 

    var track = FindSelectedTrack();                // Use this function to find the first selected track.  

    var eventEnum = new Enumerator(track.Events);



    if (track.IsVideo()) {                          // Proceed only if selected track is video track.



      if ( SelectEventAtCursor() ) {                // Function that selects events under cursor.



        // Get set to look at track directly below the video track.

        trackEnum.moveNext();                       // Go to next track.



        if (!trackEnum.atEnd()) {                   // Only proceed if there is a track below the video track.

          track = Track(trackEnum.item());          // When doing the first track (above), these two lines were executed

          eventEnum = new Enumerator(track.Events); // in the FindSelectedTrack() function.

          if (track.IsAudio()) {                    // Only trim the event if this is an audio track.

            SelectEventAtCursor();

          }    

        }

      }

    }

//  Vegas.Cursor = CurrentEvnt.Start;  // Enable this line to move cursor to start of selected event.

    Vegas.UpdateUI(); 



} catch (e) { 

  MessageBox.Show(e); 

} 



// End of main program







// Beginning of functions



function FindSelectedTrack() : Track {

  trackEnum = new Enumerator(Vegas.Project.Tracks);

  while (!trackEnum.atEnd()) {

    var track : Track = Track(trackEnum.item());



    if (track.Selected) {

      return track;

    }

    trackEnum.moveNext();

  }

  return null;

}





/** 

*

* The following function finds the event on the selected track 

* that lies under the cursor. It also deselects all other events. 

*

**/



function SelectEventAtCursor() {



  var EventFound : boolean = false;        // Function returns false if no video media under cursor.



  dCursor = Vegas.Cursor.ToMilliseconds(); // Remember the cursor position.



  //Go through each event on the track.



  while (!eventEnum.atEnd()) {

    evnt = TrackEvent(eventEnum.item());

    evnt.Selected = false;                 // De-select the event



    // Get the event's start and length timecode, in milliseconds.

    dStart = evnt.Start.ToMilliseconds();

    dLength = evnt.Length.ToMilliseconds();





/**

*     If the cursor timecode is between the beginning and end of the 

*     event timecodes, then select the event.

**/ 



    if ( (dCursor >= dStart) && ( dCursor < (dLength + dStart) ) ) {

      evnt.Selected = true;                // Select this event.

      EventFound = true;

      CurrentEvnt = evnt;

    }

    eventEnum.moveNext();                  // Go to next event on this timeline.



  } 

return EventFound;

}

/** 

 * This script selects all events that match the media on the 

 * first selected event on the first selected timeline.

 * It only affects events AFTER the selected event.

 *

 * Copyright 2008 - John H. Meyer

 * Last revision, May 4, 2008

 *

 **/



import System;

import System.Collections;

import System.Text;

import System.IO;

import System.Drawing;

import System.Windows.Forms;

import Sony.Vegas;



var evnt : TrackEvent;



try {

  //Find the selected event

  var track = FindSelectedTrack();

  if (null == track)                                // Must select a track

    throw "no selected track";

  var eventEnum = new Enumerator(track.Events);

  if (track.IsVideo()) {                            // Track must be a video track

    while (!eventEnum.atEnd()) {                    // Find selected event

      evnt = TrackEvent(eventEnum.item());

      if (evnt.Selected) {

        var selectedevnt = VideoEvent(evnt);

        var media = Vegas.Project.MediaPool.Find (evnt.ActiveTake.MediaPath);

        var dStart = evnt.Start.ToMilliseconds();

        break; // Found first selected event on timeline, so quit looking on timeline.

      } //End if

    eventEnum.moveNext();

    } // End while eventEnum



    eventEnum = new Enumerator(track.Events);



    while (!eventEnum.atEnd()) {                    // Find selected event

      evnt = TrackEvent(eventEnum.item());



      var vevnt = VideoEvent(evnt);

      // Actually make the change to set the keyframe to SD cropping

      if (media == Vegas.Project.MediaPool.Find (evnt.ActiveTake.MediaPath) ) {

        if (evnt.Start.ToMilliseconds() >= dStart) {

          evnt.Selected = true; 

        }

      }

      eventEnum.moveNext();

    } // End While eventEnum

  } // End If track.IsVideo



  else {

    MessageBox.Show("You must select a video track");

  }





} catch (e) {

    MessageBox.Show(e);

}







function FindSelectedTrack() : Track {

  var trackEnum = new Enumerator(Vegas.Project.Tracks);

  while (!trackEnum.atEnd()) {

    var track : Track = Track(trackEnum.item());

    if (track.Selected) {

        return track;

    }

    trackEnum.moveNext();

  }

  return null;

}