Lock Approved Elements
Goal: Lock scenes, shots, or script sections so no one on the team — including you — can accidentally change them during later production work.
As a project grows, protecting finished work becomes as important as creating new work. Locking is ACT3 AI's safeguard mechanism: a locked element cannot be regenerated, edited, re-assigned, or deleted until it is explicitly unlocked. Use locking whenever a director, producer, or client has signed off on something and that approval needs to stick.
If you are working solo: locking still protects you from your own future self. It is easy to accidentally overwrite a great shot three days after you created it.
Steps
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Understand what locking protects. A locked shot cannot be re-generated, and its camera, performance, or set parameters cannot be edited. A locked scene blocks edits to all shots within it and prevents the scene's set assignment or script text from changing. A locked script section prevents dialogue and action lines from being altered by AI rewrites or manual edits.
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Lock a single shot. Open the shot in the Shot panel. In the top-right corner of the Shot panel header, click the padlock icon. It changes from open to closed and turns gold. The shot thumbnail in the Timeline also shows a small gold padlock badge.
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Lock an entire scene. In the Scene panel (left sidebar → click the scene name), look for the padlock icon in the Scene panel header — next to the scene title. Click it. A confirmation dialog appears: "Lock this scene? All shots inside will also be locked." Click Confirm. Every shot in the scene locks at once.
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Lock a script section. Open the Script view in the Editor. Select the lines you want to lock (click and drag to highlight, or click a scene heading to select the entire scene block). Right-click and choose Lock Selection. The locked lines gain a subtle gold left-border in the Script editor and cannot be changed until unlocked.
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Identify locked items at a glance. In the Timeline, locked shots display a gold padlock badge on their thumbnail. Locked scenes display a padlock on the scene row header. In the Script view, locked sections have the gold left-border. In the Shot List panel, a filter option — Status: Locked — shows all locked shots across the project.
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Unlock an element when changes are needed. Click the gold padlock icon on the shot, scene, or script section again. A confirmation dialog appears: "Unlock this element? It will no longer be protected." Click Confirm. The padlock returns to open state and the element is editable again.
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Understand role requirements for locking and unlocking. Any member with the Modify-Edit role or higher can lock elements. Unlocking a locked element requires the Owner or Modify-Edit role. Members with Run AI or Read-Only roles cannot lock or unlock anything. This means a director can lock a scene and a client with Read-Only access cannot accidentally undo that.
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Review the full lock status of a project. Go to Project Settings → Production Status. A per-scene table shows how many shots are locked, approved, pending, and flagged. Use this view before sending a project to a client or before exporting for delivery.