You can create a new track parallel to any straight, curved or easement track.
The Parallel Separation control (Visible in the Status Bar) displays the current separation between parallel tracks. This value can be changed before selecting a track. The value must be greater than 0.0.
Select the track you want to parallel, and the new parallel track will appear beside it. You control which side the new track will be on by moving the cursor from one side to the other of the selected track.
This is very useful for creating sidings and yards.
You cannot create tracks parallel to turnouts or sectional track.
It is possible to create tracks that abut (the endpoints are very close and aligned). These endpoints will be automatically connected.