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Summary: The groups option in Logic Pro 8 allows users to copy automations to multiple tracks. Find out how to use Logic Pro groups in this free video tutorial on music recording software from a professional recording engineer.
"Now groups are basically taking tracks and linking them together so that you can effect multiple tracks at the same time. So, I mean, this is useful. Say you had like a little volume change in like a little part of a hook that you had four times. Now if you change the automation, you probably want to copy that automation to the other three tracks instead of having to draw in the automation every single time, because if you drew it in it might now be exactly the same. If you're trying to achieve the effect of it being exactly the same, you're going to want to copy it. So, within Logic you can actually highlight multiple tracks by pressing the shift button, and now your tracks are temporarily grouped together. So you can temporarily group these and effect them. But once you take it off, they're not going to be grouped any more. So it's not going to--they're not going to effect each other anymore once you take that off. But what you can also do is assign the group permanently by clicking the numbers. Now, if you have these little blank boxes right here, you get assigned to numbers. So if I do group 1 and group 1, right, and then I'll do maybe group 2, group 2, group 2. Now everything I do to each one of these is going to be done at the same exact time, depending on what I choose within my groups. If I choose panning, now each of these are going to pan the same exact way. Since my volume is chosen, these two are going to move in sync."
eHow Article: Logic Pro 8 Interface: Groups