@djgeorge Hi, why isn't the BCC plugin not working? I've added some anyway & sorry didn't check to see if these were in 18.

I stacked the events on different tracks because I was trying things out but you prob/poss don't have to, they can overlap/crossfade, depends on the look you want. ...🤷‍♂️ & you'll have to keyframe them.

Gradient Wipe, If the camera isn't moving create a snapshot & use that as the mask,

Subtractive Dissolve . Threshold appear

BCC Linear Luma Key

BCC Make Alpha Key,

You could create a B/W version of your clip & then use that as a mask to blend into the next clip.

Luma key & Chroma Key didn't seem to want to keyframe from one event to the next, even on full white/black Lo/Hi threshold there was some bleed through of the underlying event,, but there's prob more ways of creating this,

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PS, I watched the first 10 vids on YT, a lot don't actually say what it is, they just add the pre created Luma transition 🤦‍♂️ but a couple were helpful & i was also working of this that is the S_DissoleLuma

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If you can get BCC working there's BCC+Composite, Don't know how old your BCC is because I think BCC+ are the newer ones, but that has Matte - Luminance B/W that can be keyframed