Sneak update

I might want sneak to update it.
For instance, it is assumed that Cue1 is edited while executing it while rehearsing. (With Cue Open to edit timing)
And, the timing of the execution of Cue2 comes and it executes it. (still editing)
In this case, the edited fixture instantaneously becomes the data of Cue2 when updating it.
I want to update the sneak at this time.

Syntax is Pig+Update or something.

Thanks,
Akito
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