Hi, it's me again in my Pd documentation revision.
I have the idea that "flags" are a special kind of creation arguments. Here's how to define them:
They start with "-".
They're always optional
They come before "actual" arguments.
Now, I'm not sure about the last rule. I just tried it in [sigmund~] and I could use the '-hop <float>' flag after the actual creation arguments (such as "env" / "tracks").
Is this a bug in [sigmund~]?
Cheers