Build a layout for your trains

Most layouts start with the stock you already have. When you create a new layout, the New Layout dialog has an optional Build for my trains step that turns your collection into a head start.

Picking trains

The step lists the trains you've marked as owned in the encyclopedia, grouped by scale. Tick the ones you want to run on this layout. As you pick:

• The scale is set for you. The new layout opens in the scale of the trains you chose, and the catalogue is filtered to track that fits — no scrolling past N gauge when you're building in OO.
• Validation is primed. On Pro, the layout validates against exactly the trains you picked — not everything you own in that scale — from the first piece you lay. These are the same owned-aware min-radius and clearance checks described in validating against your trains. The picker itself is free; only the validation it drives needs Pro.

A line under the list confirms what you've set, e.g. Building in OO · validates from 438 mm min radius.

One scale at a time

A layout is built for a single scale, so the trains you pick need to share one. If you tick trains from different scales the dialog asks you to narrow to one before creating. (You can always mix scales later by placing pieces directly — the step is just the head start.)

If you don't own any trains yet

The step only appears when your collection has trains in a scale the catalogue carries. Without it, the dialog works exactly as before: name the layout, size the baseboard, and the scale follows the first pieces you place.