Parameter: I don't understand what this parameter is for?
Most parameters have a tool-tip description; a small help text that pops up when you put the curser over the parameter.
We have tried to keep the number of parameters to a minimum without taking away from the customizability of Craft Director Studio. Some parameters are difficult to understand. The easiest way to understand such a parameter is simply to change it and see what happens.
You can also refer to the help documentation included with every installation. You can reach the help documentation from Craft Director Studio's main window by clicking Help -> Help...