Secnery items

The are some scenery items, like a mine in Bath, that I would like to use in my route. But they don't show up. How can I get to them? They don't show up in RW_Tools on the identify tool either. Thanks. 

https://www.railworksamerica.com/forum/
https://www.railworksamerica.com/forum/viewtopic.php?f=7&t=404