SCREEN REFERENCE / Editing

Track editor: backgrounds, media, text and captions

Find a background, add media and layer readable text and captions.

5 sectionsActual product screenshotsBased on the November 2026 interface

BEFORE YOU START

Before you start

Open the project you want to work on. If you are new, start with the first-video guide before exploring these controls.

Screenshots show actual sample projects. Your interface may vary with your plan and updates. Instructions describe desktop browser operation; this guide can also be read on a phone.

PART01

Choose a background in Add media

Choose Add media, then Presets → Still images → Background. Enlarge a thumbnail before choosing to check whether it works behind the presenter and text.

  1. Action Filter by Background to compare background images.
  2. Action Use the thumbnail enlarge button to inspect the asset.
Background-filtered media picker with studio, interior and nature options. The product screenshot is in Japanese; the instructions explain the controls.
Presets / My assets / Shapes
Switches between supplied assets, your own media and shapes.
Type, use and appearance
Filters still images, videos and sound by uses such as background or people. Counts change as the library is updated.
Keyword search
Search by subject or mood. Clear other filters if no result appears.
PART02

Preview at a larger size, then add

Enlarge the background, review it and choose Add this asset. When selecting directly from the grid, check the selection and confirm with Add.

  1. Action Choose Add this asset to insert the background.
An enlarged blue studio background with the Add this asset button. The product screenshot is in Japanese; the instructions explain the controls.
Enlarge icon
Opens a larger preview with asset information.
Add this asset
Adds the currently previewed asset. Check its name before confirming.
Inserted clip
Check timing on the timeline and placement in the preview. Adjust layer order if it covers the presenter.
PART03

Keep the library beside the editor

View → Library opens asset browsing on the left. Close the left area again when you need more preview room.

  1. Action Filter by Background to compare background images.
  2. Action Use the thumbnail enlarge button to inspect the asset.
Background-filtered media picker with studio, interior and nature options. The product screenshot is in Japanese; the instructions explain the controls.
Presets and your assets
Use the media-type filters for video and sound as well as images.
Background and text balance
For detailed backgrounds, a solid band or clear space behind text improves readability.
Video/audio properties
Review available playback-range and level controls for the selected media. Lowering preview volume does not change the source level.
PART04

Add headings with Text

Choose Text, then edit the selected text object’s properties. Start with one heading and position it clear of the main subject.

  1. Enter Enter the on-screen text.
  2. Enter Adjust the font size.
A selected heading, with text, font and size controls on the right. The product screenshot is in Japanese; the instructions explain the controls.
Text, font and size
Changes wording, font and size. Check readability at the intended viewing size.
Color, placement and duration
Maintain contrast and show the heading only when needed.
Text length
Use wrapping, size changes or concise wording when translations or replacements become longer.
PART05

Build captions from speech

Captions opens settings for the target, position, style and timing. Captions are distinct from standalone headings.

  1. Action Choose which avatars to caption.
  2. Check Review the style preview.
  3. Action Click Generate.
Caption generation: choose the target, position, style and timing. The product screenshot is in Japanese; the instructions explain the controls.
Target
Check which speech or range to caption, including speaker associations.
Position and style
Keep captions clear of presenters and material, using readable size and color.
Timing
Check timing against the audio. After speech edits, check that captions are not stale.

BEFORE YOU FINISH

One final check.

After editing, check the intended presenter, clip and display language. Generate and play changes that require rendering, then check the saved status.

NEED A HAND?

Need help moving forward?

Tell us what message you see and which step you are on. Please do not send passwords or other secrets.

Contact us
Scroll the enlarged image to explore