Thanks for the hint. ScriptLab looks very promising. This brings up a follow-up-question: can I make ScriptLab remember/initially load a certain script so I don't have to click Load and search and select/open the scriptfile in each new PDN session?
Edit: Ok, I think I get it. Since ScriptLab is also a plugin anything you said applies to ScriptLab as well, so this isn't possible, right?