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Starting with Logic Pro 8, Apple introduced the all-in-one Arrange Window. The Score Editor is available either by clicking the Score tab or typing N on your keyboard. Many people love being able to access so many editors in one window—especially those with limited screen real estate (like laptop users) and people who came from applications like Digital Performer (which does most things in one window). Personally, I would rather have bamboo inserted under my finger nails than try to do anything but the most rudimentary score prep in that Score Editor window. I recommend creating a screenset with a Score Window, as I did with Screenset 2. (I assume you know how to do this. If you do not, search for “screenset” in the LP9 manual.)