Replace: swap and recast in your own clip

Video → Replace rewrites part of a clip you already have — a character, an outfit, a product, the weather — and keeps the rest.

1
Open Video → Replace and drop a clip, or pick one from Creations or Storage. The player loops the range you trim with the two handles; only that range is rendered and billed.
2
Write the instruction — "swap the jacket for a red leather one", "recast as @Mina" — or start from a preset (Character, Outfit, Product, Location, Weather, Time of day, Style, Recast). @mention your cast, places and styles like anywhere else.
3
Pick an engine and Generate. The result opens as a before/after you drag across; the original sound plays under both.

The two engines

Replace: 1 to 15 seconds, up to 720p, works from the instruction alone. 8 credits per second.
Replace Pro (Creator and above): 2 to 30 seconds, up to 1080p, clips up to 16 MB, and up to five keyframes. 74 credits per second, two seconds minimum.
Billing counts whole seconds of the trimmed range, with a small grace so a 10.03-second trim is still ten seconds.

Afterwards

"With original sound" lays the source clip's audio under a silent result without re-encoding. "Open in Cinema" makes the result scene 1 of a new film, with the original sound on its audio track. Replace Pro with a character who has a look sheet first renders a keyframe of that face from the clip's first frame — one extra image, shown in the price.