When adding engines they tend to add to the first available number 1 through 99 that is not being used. You place a strange engine on the layout as Sam did, it had a number that was the same as one of Sam's. You can re-assigned the designated address number for the engine. Best to leave low numbers open 1 through 5 or for that matter just (one), most engines will add to this number. Then move the engine to a higher number, free-ing number 1 again. The Fort Pitt Highrailers assigned (10) address numbers for each participant. Didn't take long for that to get screwed-up, so we did it again. No one was allowed to add engines during an operation session.
System/Engine Setup/Edit Engine/Edit Address/Select Engine/Select New Address.
(1.) The assignment of address numbers is done in (ONE) master remote. It took the better half of a day to do the list the second time.
(2.) Then the engine list was downloaded to my laptop.
(3.) From the laptop, (FIVE) cloned remotes were done, all with the same engine list. We seem to be do-ing better the second time.
Most noted problem, engines showing at meets with dead batteries, they need to be on a layout the day before to be completely charged. The dead battery usually leads to engine not on track and by that time the battery has charged enough to be re-enter into a full system of operating numbers and things are messed-up again.
Note that if someone shows at a train meet, (1.)adding an engine has to be done via the system to the master remote, (2.)down loaded to the computer, a revised engine list, and then (3.)the revised engine list upload to each cloned remote. Other wise the system becomes a mess easily in one year, the time it took to realize: Hey this isn't working, we need to do it again.
Everyone on the same page, sometimes.
Mike CT