Pro Tools:Link timeline and edit selection

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When making selections in the Pro Tools edit window you can choose to link or unlink the timeline selection with the edit selection.

What does this mean?

When the link timeline and edit selection option is turned on then the selection used to edit regions and the selection in the timeline will be connected. When the Timeline and Edit Selection are unlinked (set to off) then these two selections will be independent of one another. See the images below

Timeline and Edit selection enabled




Timeline and Edit selection disabled
If you turn off the link edit and timeline selection option (see pictures below) these selection spans will not be linked.