ProMoVis is a software environment which can visualize a process system and analyze this interconnected system using the control structure selection methods.
The tool s implemented as either a standalone software for industrial use or as a research version which can run within Matlab, both released under the Apache Open Source license.
ProMoVis is not limited to the control structure selection
problem as additional analysis methods can be added easily. For the re-use of existing models a Modelica interface is under development.
If you want to refer to ProMoVis in a publication, please use the following: "Wolfgang Birk, Miguel Castaño, Andreas Johansson, An application software for visualization and control configuration selection of interconnected processes, Control Engineering Practice, Volume 26, May 2014, Pages 188-200."
small and efficient and gets the job done.
promovis works great