Left & Right arrows to scroll to right/left
I made this because I was inspired by the NYC subway train roll sign scrolling videos. If you search "Nyc subway train roll sign scrolling" on YouTube, You will find videos of the rolling scrolling on an r46 or other trains. Rollsign scrolling is used to show the name of a train line. For example, if I set the roll sign to (R) Then the route is (R) line (Note if the roll sign says something that isn't in the NYC subway, that probably means (in most cases) that it used to be a line but either was discontinued or brought back for the turning down of a discontinuation of a line). *for example (W train)*. The W train was added in 2001 but discontinued in 2010 until it was brought back in 2016.
