Installation

In Blender open Edit, Preferences, Get Extensions, then use Install from Disk and pick the train_generator zip.

Usage

1. Open the Train tab in the 3D viewport sidebar (N). With nothing selected, click the picture to pick one of the 29 trains, then press Add. You can also use Shift+A, Mesh, Train.
2. The card at the top shows the train. Click its picture to switch to another preset. Surprise Me makes a random train, Variation changes the current one and New Seed reshuffles the details.
3. The Consist box picks what leads the train (steam, diesel, electric, a multiple unit, a tram ...), how many locomotives, how many cars of which kind and what ends the train. For steam engines choose the wheel arrangement and tender or tank type here.
4. The Livery box sets the paint scheme, its four colors, the operator name, the lettering font and the first running number.
5. The Motion box moves the train along the track (Travel), runs it over time at the set speed (Animate), opens the doors and raises the pantographs. These sliders are animatable and do not rebuild the train; Shift+click the small buttons to add a keyframe.
6. The closed sections below hold the details: body shape, steam details, running gear and freight loads, paint details, weathering, the track and catenary, and export.
7. For game engines set Detail low, then Convert to Mesh copies the train as plain meshes, one per vehicle.