Editing a Cue Inside a Cuelist

I feel like this should be something stupid simple, but I cannot figure out what I'm doing wrong.

Say I accidentally update cue 1 inside cuelist 1 with fixture 1 at a value of 100.

1000 cues recorded later, I realize I messed up cuelist 1. In fact, I don't want fixture one in cuelist 1 at all. How do I remove fixture 1's existence inside cuelist 1?

Example... I record a value inside my house lights cue list. That value affects all of my movers. I want to remove the values that affect my movers that got accidentally recorded in my house lights cue list.

Any help would be appreciated.
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