If I read you correctly you have a MIDI track that you want to use the Swan instrument on and you do not have a MIDI controller assigned to said track. If so you need to do is to open the MIDI track in a MIDI editor and at the vary beginning add a CC11. Or depending on your DAW you may be able to open an automation window, assign CC11 to it and draw in your volumes.

Remember that CC11 depends on the volume setting of CC7. That is CC11 at 127 (maximum setting) will only be as loud as your CC7 setting. For example of your CC7 is set at 64 then your CC11 at 127 will sound at 64.

I hope this helps and good luck.

An afterthought if you are only trying to set a given volume then open the MIDI track in one of the two above examples and use CC7, not CC11. If you are using the wind or breath controller version of your Swan device then use CC2 and not CC7.

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It's called the Heineken Maneuver.

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