Its quite a neat feature to be able to create drum maps directly from instruments. However i was not able to make a copy of it and save it under a different name . Everytime i modified the copy and used it on the same instrument again it switched back to the old layout and name. So its still attached to the instrument. I think its some meta data written into the XML file.
While it makes sense to dynmically react on changes in the instruments mapping it would be great to be able to detach it from the instrument so that we can actually permanently modify it. I use this feature quite often with BFD3 and its great to not have to manually created it but i want to change the order of the notes displayed to have a better overview over all the kit pieces an their articulations. With drum maps created from instruments its not possible.