V3 removing macros

I've ran into a few instances where I would like to remove a macro completely from a layer. I've tried:

Fn+Prgm Followed by the trigger key and Fn+Prgm, this actually seemed to remove any function the key had at all. The trigger key was r.

I found that the only way to remove the macro was do do a reset. I did not want to limit the number of macro's by assigning the default function to the key.