Im just learning to set up the EIT on my Sydney Metro route to control a couple of the complex junction areas and access to Sydney Central platforms 1 to 12.
Sefton junction has 8 paths, 6 for the passenger services and 2 for freight, while I have two EIT's at Central, one to control incoming and one for outgoing services.
All seem to work as desired sofar under AI so I'm pressing on with a few more.
Tips sofar are:
get all your signals and junctions installed first.
Ive used trackmarks at the moment to help with driving to the EIT starting points in some cases.
Use Schedule Library to define your routes including your preferred EITsetPath rule.
Set up your consists and drivers to execute their route as defined in the Schedule Library.
Then test one step at a time before getting too complicated.
Good Luck
PG