> ## Documentation Index > Fetch the complete documentation index at: https://www.tella.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Auto layouts > Generate edited layouts automatically across landscape, portrait, and square videos with optional AI-generated image B-roll. *This feature is currently in beta. If you have questions or run into an issue, please contact support.* Auto layouts analyzes your clip's transcript and video and produces a sequence of layouts — camera bubbles, screen-only beats, camera cutaways, side-by-side splits, TV-presenter compositions, and optional image B-roll — tuned to your chosen editing style. ## How to generate auto layouts 1. Open a clip in the editor and go to the **Layout** section. 1 2.png 2. Choose your editing style. **Auto** is selected by default and picks the right style based on the content of your clip. * Each style changes the pacing, composition, and edit vocabulary of your video * Hover over a style to see a description * Try **Auto** the first time you generate layouts 3. Click **Generate layouts**. 3 1.png Layouts start streaming in and are applied to your clip as they generate. 3 2.png 4. Wait for the generation to complete. 5. Review the result. Give a thumbs up or thumbs down to rate it — your feedback helps tune the model. 5 2.png ## After generation Once auto layouts finishes, you can: * Change the editing style and regenerate for a different approach * Regenerate with the same style for an alternative take * Delete individual layouts while keeping the rest * Adjust the start and end of any layout * Undo or redo — you're never locked in * Windows: `Ctrl + Z` to undo, `Ctrl + Y` to redo * macOS: `Cmd + Z` to undo, `Cmd + Y` to redo * Rate the result with the thumbs up/down buttons ## Editing styles Each style is tuned for a different kind of content and a different canvas. The styles available to auto layouts depend on your clip's recording type and canvas size. * **Auto** — picks the most appropriate style based on what you say and show * **Product demo** — high-energy proof + commentary; mixes screen reveals, camera cutaways, punch-ins, and B-roll for product walkthroughs, page critiques, and feature launches * **Tutorial** — procedural, step-by-step instruction where the viewer needs to follow exact clicks, typing, and configuration * **Presentation** — speaker-led talks, pitches, recaps, and lessons; includes a hosted **TV show** variant on landscape canvases that frames the speaker like a presenter * **Intro & outro** — only bookends the clip with a camera-led intro and outro and leaves the middle untouched ## Image B-roll For product demo and presentation styles, auto layouts can insert AI-generated still images as B-roll over abstract concepts, benefits, customer situations, examples, and metaphors — places where there's nothing specific on screen to inspect. * B-roll appears as a generated still image (never video) sized to your canvas * Placeholders show the prompt while the image is generating * B-roll is skipped during clicks, typing, cursor work, code edits, and dense slide reading * The **Intro & outro** style doesn't add B-roll by default ### Turn B-roll on or off Generated B-roll is off by default. To enable it for a generation: 1. Open the options menu next to **Generate layouts**. 2. Under **B-roll**, toggle **Generate B-roll** on. 3. Generate or regenerate layouts. Your preference is remembered for future generations. ## Supported recordings and canvases Auto layouts works with: * **Landscape (16:9)** — two-track (camera + screen), screen-only, and camera-only recordings * **Portrait (9:16)** — two-track, screen-only, and camera-only recordings * **Square (1:1) and round** — two-track and camera-only recordings The available editing styles and compositions adapt to the canvas — for example, portrait clips use a presenter-forward split, and landscape presentations can use the TV-presenter framing. ## Best practices * **Start with a clean slate** — auto layouts works best on raw, unedited recordings * **Crop first** — if you need to crop your screen, do it before running auto layouts * **One clip at a time** — generate layouts per clip; layouts won't generate across an entire video in one pass ## What to expect * **Variability** — each generation can produce slightly different results; regenerate to find the version you like * **Pacing** — overrides are used as exceptions to the base layout, so most of the clip stays on the base composition with timed accents around important moments * **Processing time** — longer clips take longer to generate ## Limitations * Maximum clip length: 20 minutes * Make all crop changes before running auto layouts — cropping afterwards affects every layout and can produce unexpected results * After cropping, you can't update the generated layouts ## Actively improving Auto layouts is still in beta. The team is fixing bugs, incorporating your feedback, and tuning the model continuously. Features and behavior may change as the feature evolves.