Rookie error: after creating devices (keypads in particular) in the Essentials program, transfering and then using the plug-in 'create new devices from repeater', I have gone back and edited in Essentials, and repeated the transfer/import process. - and sometimes the result has been a second copy of the same device (with a distinct address).
Which fields in Essentials result in the plug-in creating a duplicate device? - or perhaps there is something else that creates the second device? Can I simply delete one version of the keypad buttons (as they seem to work in tandem)?