Having a second monitor can be quite a help in editing files or route building in TSC. Having a second monitor to open and inspect folders, open the Raildriver interface, Railroad Radio Net, ThirdRails maps, a list of assets, or anytime you need to keep open multiple applications at one time without having to tab out to see them. If you have an extra Apple or Android tablet lying around here is an article on how to add this to your existing desktop or laptop using a freeware program called Spacedesk. It connects via your local wireless network or in the case of an Android device via USB and can be used to either duplicate or extend the desktop.
https://www.pcworld.com/article/1526926/how-to-turn-tablet-into-a-second-pc-monitor.html
When downloading the software select the Windows Primary PC either 32 or 64 bit.