The fiddle yard has five tracks in each direction. Two of those tracks are set up to hold two "half length" trains. In Traincontroller 7 silver, they were simply set to accept trains in a train group "short trains"; that meant that ONLY short trains could go there and they couldn't ever use the longer tracks.
Traincontroller 8 gold adds "train size dependent" operations. To set that up, enter the lengths of the relevant blocks: it is only the shorter ones where we've set a size. Set lengths for engines or train sets: all of our "multiple unit" trains are entered as a single engine for convenience.
Then, in all of the schedules, go to the rules. Select:
- Trains must fit in destination blocks
- Prefer shortest destination block
We've also enabled the watchdog, to detect stalled trains: set the watchdog timer to 60 seconds. Set "detect lost cars" to 3: with it set to 2, we were occasionally having erroneous detection of a missing car that wasn't actually detached.