CB10 Map always question

I created two midi devices for my two hardware synth and everything works as expected. I sometimes start CB with the synth off as I don’t always need them. As expected, I get a message saying connection cannot be made. I notice there’s a column with ‘‘Map always’’. If enable it, will this annoying error message disappear at start up ? If so, where can they be turn on ?

Anyways, my goal is not to have the error connection message pop up when the hardware are not run on at start up.