remove with update?

is there a reason remove don't work with update?

-I'd really like to be able to remove with update.. say i have a value that i wan't to knockout from my cuelist, but i don't know whitch cue it's beeing tracked through from,then it would be nice if i could just use update, and select remove and track backwords..

If it's not on the wihlist already then.?
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