How do I remove a Locked Parameter row from the Fixture Editor?

For reasons too complicated to go into that have to do with ESP Vision bugs, I need to make a version of the stock VL1000 TS fixture in the library that doesn't have the first channel which is a placeholder DMX channel using a Control parameter called "Locked Value".  

I can't figure out how to do it. I can copy the fixture, but I can't get that row to go away. I can select it and delete it, but it just bounces to the end. I can re-map it to a normal parameter and then delete it, but it just comes right back. I want to get this fixture type down to 26 addresses, not 27. How do I get rid of this row?

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