Godot is completely different in terms of programming, makes sense it's sorta object oriented in a way "old school object oriented"
In C# I'd use lists and dictionaries to essentially do this, lists at least in C# works as an index so it's easy to find index 2 which is actor 2 well index 2 is really actor 3 but who cares...
Godot seems to have lists and dictionaries setup a bit different at least more so different than C#.
I guess I could compile the C# module and call it a day but hear it has some issues right now so sticking to primarily Game Maker Studio 2 for prototyping and GDscript for now.