Andy,
Now you are getting into a fuzzy area. It will all depend on the signal
hardware. Some masts assign different turnout numbers to select different
aspects on a mast. Some use special signal accessory commands. There are a
couple of more options but you get the idea, you have to match whatever that
hardware wants. Some hardware doesn't do masts, it does heads, JMRI would make
them into a mast and then talk to each of the heads to make things happen.
But which ever way is used, JMRI does not try to reconstruct the value for a
mast from some combination of lower level items. Meaning if the physical mast
hardware uses turnout commands to each head, a mast in JMRI won't follow those
commands. Trying to think it up the tree so to speak misses some details so it
doesn't work. But more importantly by not trying to follow those lower commands
prevents JMRI from getting into a loop of change.
-Ken Cameron, Member JMRI Dev Team
www.jmri.org
www.fingerlakeslivesteamers.org
www.cnymod.com
www.syracusemodelrr.org
Ken Cameron