Use envelopes to make the fades.
I like to add them manually and place the nodes manually then simply drag the nodes and lines connecting them as needed.
You can place them in tracks and in busses as well to fade or simply control volume levels in the tracks.
below, you see the envelopes as yellow lines,,,, some are fading the tracks and in track 5, the envelope is used to chop off the last chord.
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