Before you can proceed, you need to choose the structural file!
You can edit the source code for the initial conditions and the compute shaders by accessing the Source Code Editos menu of the graphical interface. Each class of editors can be toggled on and off. Remember that you can save and reload your changes to each shader.
At the end of the comp2 shader source code lies the pacing period which can be adjusted now by editing the source code. Any edit of the source code will change the model mid-simulation.
Notice that GLSL does not allow for mixing of data types. So, floats and integers cannot be mixed unless directly type casted.