I created this abstract with Purr Data (Pd-l2ork-2.13.0 20200802-rev.70066071). I don't know if it works in other versions... I know that recent versions of Pd has [pdcontrol], PurrData doesn't have it yet. Instead of that, I use get.dollarg.pd found in this thread, thanks to @weightless and everybody in that thread.

Arguments passed to the abstract automatically creates some objects (inlet, route, outlets) and canvas and arrange everything to make it work.

Important: this patch uses some magic numbers to connect objects. If you change it, those numbers don't work any more and patch stops working.

To edit arguments... click "edit" and edit them.
Download them:
r2.pd
r2-help.pd