Is it possible somehow to plot multiple signals on top of each other, e. g., a signal, and a delayed version of that signal?

Any suggestions will be greatly appreciated.

The [+~] object adds any two signals together. And you can use [delread~] and [delwrite~] to delay the signal.

Maybe you can plot two different arrays on top of each other?

1. Create an array from the "Put" menu.
2. Create another array from the "Put" menu, and click the radio button to put it in "last graph".

Voilà-- you now have two arrays inside the same graph.

(In Pd-l2ork you can plot them in different colors.)