QUOTE(bit4bit @ Apr 26 2007, 04:12)

If it's not possible, then I've got a more general question, since I'm new to Foorbar and only fetched a part of it's possibilities.
There are lots of commands accessible from the menu, like 'Play', 'Pause', all the edit stuff, and the sorting features. And the 'Panels Dropdown Menu' is full of commands (or is it only for informational purposes?). There must be a way to use them in the code. How will I do this? Only in the COMMAND field of a button?
Correct. They are there as a reference to make for easy copying into your code.
QUOTE(bit4bit @ Apr 26 2007, 04:12)

And at last here is an other beginners question:
Are the buttons "Global", "Background", "PerTrack", and "PerSecond" in the Panels configuration window in any way functional? I don't see a difference when I use them, or have I missed something?
You are not missing anything. They are not functional.
QUOTE(bit4bit @ Apr 26 2007, 04:12)

And the markers "// PerTrack" etc. are they still not functional in SCPL? And is there a special order in the use of the redraw type or can I shuffle them as I like to?
They are not functional in SCPL.
SCPL is drawn while scrolling. Selected and deselected items are redraw on mouse click, and the current playing song is redrawn every second.