Hi Chris,

The CC87 events are volume automation nodes, and are used when making volume changes in the Tracks window.

If you click on the arrow under a track number on the far left of the Tracks window, it'll open an automation lane, where you can make gain or volume changes with your mouse.

If you really want to edit volumes through the Event List and don't want to deal with those extra CCs, you can highlight the entire track by hitting Ctrl+A, then hit Ctrl-X to Cut. In the window that appears, check the Events box, select Use Data Filter, and click OK.

In the Data Filter window that appears, uncheck everything except "Ctrl", and choose 87 to 87 as the range. This will cut all the CC 87s from the track. They'll likely be regenerated later, but at least you won't have to deal with them while editing.

Thanks
Kent
PG Music