Limit FPS in Railworks?

Is there a way to put a limit on Max FPS in Railworks/TS2018? This is with an NVIDIA card. I looked through the NVIDIA control panel and nothing jumped out at me. Any help would be appreciated.
https://railworksamerica.com/forum/
https://railworksamerica.com/forum/viewtopic.php?f=33&t=19517
JohnS wrote:Create a shortcut to Railworks.exe on the the desktop then right click and hit properties. Add -FPSLimit=60 to the end of the command line so it looks like:
Railworks.exe -FPSLimit=60 there is a space between exe and the -FPSLimit
http://steamcommunity.com/app/24010/discussions/8/365172547938837522/ try this link. it will describe it in better detail