AE2's 'Protective Region Markers' feature in After Effects is tailored for preparing projects for export to Apple Motion. It assists in setting up in and out markers at one-second intervals, crucial for maintaining a protective range where animations remain unaltered post-export. This is particularly useful for titles with incoming and outgoing animations. By standing at the end of the incoming animation and pressing 'Set markers', two markers are created: an 'In' marker where the animation ends and an 'Out' marker one second later. Post-export in Apple Motion, these markers define the stretchable region of the animation, ensuring that the incoming and outgoing animations remain untouched. This feature is vital for extending animations only within certain intervals, preserving the integrity of the original animation in the exported project.

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