I was wondering why the heck I couldn't see the creation of a DSP network in the onInit of some script modulator snippets...
The DSP network is owned by the script processor and not the scripting engine (like for example a timer object), so you don't need to call this method in order to create a Network - you still can do, but it's not required anymore. Instead you can use that fancy popup, but that doesn't popup did indeed not show up in an external floating window until now.