Creating concurrent crossfades

I am trying to create concurrent crossfades where a long slow transition runs on part of the set while other (move) cues respond to action in another part.

Both parts include traditional and RGB fixtures.

I have tried movefades, lockfades (locks other channels, but not attributes), one-shot chase sequence (which repeats despite one-shot enabled), Master link (can't get a dipless fade)

Does anyone have any tips on how to acheive this?

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