Stop-copy threshold
The single most important setting. Choose a loss level — as a percentage of the capital you allocated to that provider — at which copying stops automatically and open positions close. Set it at a number you can actually tolerate, then check it against the provider's historical maximum drawdown. If your threshold is 15% and their worst run was 28%, you will be stopped out at the bottom of a drawdown they eventually recovered from. Either raise the threshold or pick a different provider; do not leave the mismatch in place.