Hello! I bought a Nuki smart lock and I'll need to replace my cylinder as the one fitted is not compatible. I wanted to get a turnthumb one to be sure that in case the smartlock is out of power/internet I can still operate the lock from the outside with the key even if the door is locked. I've got the Nuki adatper for Yale thumbturn, they say to follow Yale instructions to remove the thumbturn, I did not order the cylinder yet, is it coming with the thumbturn preinstalled? If yes, you know how easy it is to remove the thumbturn? Do I need any specific tool for that and standard tools will do the job?