Torque Script Variables

Maybe someone can point me in the right direction here. Im new to the Torque Engine and to Torque Script. Im pretty good at C++ Programming. Im trying to figure out where you can find a list of variables that you can manipulate in the Scripting control. For example some of the Movement variables for the player (FPS Kit) are denoted as beginning with "mv" then the rest of that variables name is listed. I have seen these in Finney's book but I would like to see the rest of the variablest that the engine uses and that we can manipulate through the scripting code. I know that we can generate our own but I can see that there are certain globals that you have access to that directly manipulate things inside of the engine. The one variable that I am looking for specifically is the current speed of the player, or maybe the acceleration. I need to be able to control these variables. Are they avaliable through the scripting language? or do we have to expose them in the C++ code so that we can manipulate them by the scripting. Pointing me to documentation of all of the variables that you can manipulate through the scripting language would be beneficial, or how to generate the documentation on my own would also be helpful.

Thanks in advance for the help, and if you need any clarification on this just let me know :)