MoRoTeCo Toolbox stands for Mobile Robot Team Control Toolbox. It is a suite of Matlab/simulink blocks. Most of them are written as a S-functions using simplified scheme in M-script. (hence, the long name Level 1 M-file S-functions). If you have even a moderate experience in writing m-files, you will have no problem in understanding code hidden behind block's mask.
You can download current version - 0.04 here.