After listen the song we can adjust diferent options like Trim for tis we have to put the mouse curson on the edges of our track clic on it and move the mouse left to right after trim our track we can use the slice tool to separate the track in diferent parts. we can see with more accurately our crossfade making zoom on the split (pushing shift + wheel mouse up) we can adjust the crossfade parameters with the mouse we have some different zoom options, on the view menu 