Program a multiple unit (MU) lashup with lead unity only horn

This is a Gargraves 215-RC Right hand O-42 Remote Control Switch with all Stainless Steel rails

Trainz Product Id: 11535799

Trainz Product Id: 12380923

Model Number: 24070

Broadway Limited 3098 N New York Central Alco PA1 Paragon2 #4200 ProductID_11573354 Program a multiple unit (MU)This is a Broadway Limited 3098 N Scale New York Central Alco PA1 with Sound& DCC,Paragon2 #4200 (Lightning Stripe, 2,Tone Gray). Locomotive Features: All,New Paragon2 Sound & Control System,Integral DCC Decoder with Back EMF for Industry Best Slow Speed Operation in DC and DCC,Precision Drive Mechanism engineered for continuous heavy load towing and smooth slow speed operation,Motor Type: 5,Pole Can with Skewed Armature & Dual Fly Wheels,Premium