Hello, just asking how give departure signal if scenery is offline.
If You are in dispatcher mode in order to give departure signal if next scenery is offline there are two ways:
On spk/scs/sce You can give departure on substitute signal (SZ) informing driver what is the reason or on scenery with mechanical devices You can give go the normal way, setting up the route.
On spk/scs/sce You can ask dispatcher of other scenery for momentary line block to give signal, then when the driver is past exit signal You can disconnect line block.
I would rather use the former because it doesn't depend on other sceneries and in case You forget to break the block the train comes back to You.