How does the Suggested Train Start Times button on the build Manifest tabpage work?
All Eligible waybills for each local, way and fast train are examined. For each train that can have cars eligible to move, the start time, including waiting times for cars to fill/ empty plus time to pump up the air brakes (see MRRM.ini file), is calculated and displayed. If you click on a row in this pane, you will be asked if you want to use an existing or create a cloned train to satisfy the time specification. Typically you only use this feature when you first create trains and need some help defining what trains run when for optimum industry support. After they are established you would not typically use this function except to check if adjustments are needed for some reason such as industries added or removed, batch frequency and volume changed, and the like.