elimination of empty space

Isn’t there a setting for automix that corresponds to crossfade in iTunes where the music crossfades at the end of the track and eliminates empty space automatically. It looks like there are only two choices, either ‘plague or cholera’ so to speak. Either - end point: automatic or end point: manual. And by choosing end point: manual, you can only choose a number of seconds before the end of the number. There doesn’t seem to be an option to crossfade when the music ends (not the track). It should be a no-brainer to implement such a feature as it works in iTunes. Or is there a setting I haven’t discovered yet?