AFAIK there's no way to use automation to change presets yet. But per-item/take-FX is an easy alternative: Just pick the preset of your choice and drag and drop the phaser from the track insert onto the item (a little FX symbol appears on it): [I hope the image appears, Shup is having problems here again] Each item can have its own copy of the phaser this way, each with its own preset. When you're finished, switch the one on the track insert "offline" (CTRL-Shift-Click) or bypass (or your track will be running through 2 phasers all the time). :)