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Resize a scene.

Fit a grouped scene to a new slot.

Extend a group and proportionally redistribute its child intervals. The workshop chapter grows from five to seven seconds and its title moves from local 2s to 2.8s, while the video reads a longer source window at normal speed. Before and after sources retain the exact timing edit.

Try it in your agent.

Use this prompt as a starting point. Review the result, then ask for the details you want to change.

A prompt to start from

Use Strata. Create an eight-second silent Strata grouped-scene timing example. Place “Give it / more time.” at left and a workshop scene at right starting at 1s. Resize its original five-second slot to seven seconds with proportional descendant timing: the video source window and active span extend from 5s to 7s at 1x, and its title moves from local 2s to 2.8s with its duration extended proportionally. Keep independent original and resized project sources. Show continuous footage through the enlarged slot; do not speed-stretch the video or claim an unavailable group-retime API.

A few useful details.

How do I try this with my agent?

Copy the prompt into your supported local agent with Strata installed. Review the preview, then ask for the changes you want. The composition stays editable as you refine it.

Where does the video render?

Strata previews and renders locally on an Apple Silicon Mac. The local engine is free; your agent’s subscription or usage costs are separate.

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Free local rendering on Apple Silicon Mac. Your agent’s costs are separate.