I don't see a way to do this without a schedule. Schedules are not that complicated. In the random section select 1(%). That should give you about three deliveries a year :-)
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Stefan Bartelski
Home layout: The Blue Ridge Line, an HO representation of the L&N Etowah Old Line from Etowah to Elizabeth and the Marble Hill branch (Georgia Marble Railroad), set in 1986 (under construction)?
Modular Layout: Shoofly module of the Country RRoads Modular group
