By default, all transport objects in Live devices (those without names) synchronize to the Live transport.
Named transport objects do not synchronize to Live unless you set the clocksource attribute to the name live.
If two device instances contain transport objects that share the same name, they will run independently.
The tempo-based timing system synchronizes to Live even in preview mode. However, there may be disruptions in the continuity of timing when switching into or out of preview mode.