To remove a fixture:
Setup → Patch : open the Fixture window.
1 Remove : Select the fixture(s) you want to remove, and press Remove.
You will be asked to confirm. Select OK.
If you remove a fixture, all of its associated programming in groups, palettes, cues and so on will be removed from the show. To disable a fixture while retaining its programming, unpatch it; see Unpatching Fixtures from DMX Channels.