Remapping controls for the fps controller?

I'm trying to set up a split screen multiplayer (on one computer with only one keyboard) where one player controls their movement with the WASD keys and the other uses the arrow keys. And since there's only one mouse, using that for pointing wouldn't work, so the a and d key would have to be looking side-to-side while w and s are forward/backward. I'm pretty new at this so my coding skills are next to none, and I have some knowledge of how to work the Input Manager, but not a lot. Is it possible to remap the controls to make this work? Any help would be very much appreciated....

yes it is. If you look at the input manager you can see that horizontal and vertical are mapped to wasd and the arrows. You can just remove one of the mappings and create two new axes named horizontal2 and vertical2, copy the settings from the according axis and use arrow keys or wasd as buttons.