Master Key to manage multiple locks

The ability to change out the cylinder for a master key would make these so much more useful. We have group homes for people with disabilities, to be able to use your locks would be amazing. Unfortunately we need to be able to use a master key. Thanks!

I’m pretty sure you can change the cylinder - and even have it re-keyed with a master key. Just takes a locksmith to do if you are unfamiliar with how these work.

I just ordered a Schlage rekeying kit from Amazon and rekeyed all of my locks to the same key. Takes a little patience, but not difficult. Or you can pay a locksmith do do it for you

We tried that, and the locksmith said they cannot do it. So you were able to rekey the cylinders to a master key? Or a new key specific to the lock?