Station Decoration

Fix the occasional model bugs in catenary; Now you can adjust the length of each model of the rigid catenary through the configuration file (if your computer performance is relatively low, you can increase the length of the model appropriately, pay attention! Only integers and the range is 1-4); Delete the old double-layer Pole and add a longer ceiling, allowing sign posts, PIDS posts, etc. to pass through the model; Add several multi-model decorations, the number of models will be indicated in golden fonts, and models can be switched using the model switch stick (more models will be added later);