How to apply a Campaign House rules to a race

[dgagnon99]

So I created a thing ID rDrElf3 for my race variant. Should I Replace the Thing Id "rDrElf", considering that there is already a Thing Id "rDrElf2" that is also replacing the rDrElf. I have tried and got the following error message "Duplicate attempt to replace thing 'rDrElf' by things 'rDrElf3' and 'rDrElf2'. If I don't replace thing rDrElf, than many of my Bootstrap that are tagged to rDrElf don't really work.

As my goal is just to add my campaign variant of the Drow and not to replace the one created by the Community Created data set, I am interested in your suggestion/comment.