Reloading Assets Popup.

This is something new to me. While driving a route I hit 9 key to check switches ahead and I received this popup.

 

Think you hit one of the Fn keys on your way to the 9. Can't remeber which one does it. But all it does is reload all Assets in the route.

 

Yeah it's F9, If you did hit the 9 key as you said then I recommend you cut your fingernails

 

Thanks. Not the nails, but the eyes.

 

It's for applying changes made to assets on the fly for developers, a core keybind that's been there "forever".