If the Apple Loops Utility isn't available in Logic Pro X
Logic Pro X 10.4 or later on macOS High Sierra or later no longer supports the Apple Loops Utility.
If you're using Logic Pro X 10.4 or later on macOS High Sierra or later, "Open in Apple Loops Utility" won't appear in the Functions pop-up menu.* In Logic Pro X 10.4 or later on macOS High Sierra or later, you can add and tag loops in the Apple Loops browser, and manipulate the loops using Flex Time.
* Logic Pro X on macOS Sierra supports the Apple Loops Utility.
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