1) Upload
2) Lens + Export Settings
Recommended frames: —
Travel (mm): —
3) Preview
Scrub through frames (full control — no autoplay)
Frame: / 0
Tip: drag across the preview image too.
3b) Manual 6×9 Crop Box (for Export)
Drag box • resize via corner • aspect locked to 6×9
Manual crop is applied to the exported 6×9 frames before interlacing (so you control what gets cut off).