brconflict
If you select a clip, then export Entire Mix, you may only get that clip exported as a result.
Actually you "WILL" get only that clip exported.
It took me a while in the beginning of learning sonar (which was a long time ago) to figure out what happens with "export" but now that I have it figured out, I like it.
It will export what you select. or if nothing is selected, it will export "what you hear." and it always respects mute and solo, so if you select a muted track it doesn't get exported.
This allows great control over what you want exported. If you select "none" it does just what you want it to do, exports what you hear when you hit play.
However, many times there are things at the end of the song, beyond the "real" end of the song. Or sometimes I put something at the beginning, a count in or something, so the "real" song doesn't begin until beat 2:01. Most of the time, when I'm totally finished with a song, I put in automation on the master to fade to 0 at the end of the song.
So to get a final export of the song. I can select from the real start of the song (maybe 2:01), through the point where the song is faded to 0. This gives me an exact export of just the song, without any intro length or extra length at the end.
Also, I sometimes export parts for other musicians, maybe just a drum and rhythm guitar mix to send to the bass player. It's easy, just select the required tracks and export.
It all provides for a very flexible way of exporting just what you want. But it does require some learning and understanding of how it works.
gabo