Reaper: Delete unsynced comp areas in Fixed Lanes

The REAPER Blog·May 2026

Demo summary

The presenter shows how to use the new action to clean up orphaned or unsynced comping areas in REAPER's fixed lane tracks.

Step-by-step

Identify unsynced comp areas where media in the comp lane has moved from its original position
Create a time selection if you only want to target a specific area
Open the Actions list
Run the action 'Fixed lane: Delete all unsynced comp areas' or 'Delete unsynced comp areas in time selection'

Options

Delete all unsynced comp areas globally
Delete unsynced comp areas within a specific time selection

Watch out for

Unsynced areas occur when media in the comp lane is moved away from its original source position

Tips

Look for the highlight indicating where a comp lane used to be to identify unsynced areas
Re-click the source area to re-comp from the source after deleting an unsynced area

Highlights

“That's probably not clear at all, but”

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AI Audio Editor

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