Gave it a couple of hours over the weekend, the mainline was laid out between 180th Street and Gun Hill Road.
And yes your eyes are correct, the Dyre Avenue Line was placed too in this build session. All the stops marked and signaled up to Dyre Avenue; added an easter egg stop after Dyre Avenue. The Dyre line was placed as a four track line all the way up to Baychester and then it turns into two tracks until Mount Vernon.
The Dyre Avenue Line - fully signaled.
180th Street Yard-Unionport - fully signaled.
179th Street Yard - Fully signaled.
To Do List:
Place stations on WPR (Bronx Park East, Pelham Pkwy, Allerton, Burke)
Extend the WPR line to 241st Street, layout Wakefield Yard
Basic scenery (Columns, bridges, 3rd rails & signals)
Signal trackage down from 180th to 149th and 3rd Avenue Branch.