Satellite Tool Kit STK Is a sophisticated software tool for modeling and analyzing a wide variety of scenarios involving satellites, sensors, mobile vehicles and stationary facilities. Using the STKConnect module, the capability of STK can be expanded considerably through the use of MATLAB to perform, for example, tradespace analysis studies. By executmg some MATLAB routines many times through a while- or for-loop with slightly different instructions, a larger number of scenarios can be generated for analysis. Although the STKConnect module for MATLAB provides some useful MATLAB functions for building a scenario, they are limited to basic operations. This work describes a new set of MATLAB functions that simplify scenario development and provide the ability to model some common military activities. Examples of these activities would be specifying aircraft search patterns or instructing one vehicle to chase another. The paper also introduces a common framework in MATLAB that can be used to reduce the complexity of large STK scenario development efforts. The MATLAB functions described in this paper are provided to the readers on a CD. They are offered to the military OR community to aid in the development and analysis of military scenarios using STK. Ideally, the user community will further validate the utility of these functions and perhaps add to this library of functions.