Pixiewps: wps pixie dust attack tool

[nuroo]

Hey wiire we all appreciate your work.

Can you clear up a few things for me please:

Examples:

 pixiewps -e <pke> -r <pkr> -s <e-hash1> -z <e-hash2> -a <authkey> -n <e-nonce>
 pixiewps -e <pke> -s <e-hash1> -z <e-hash2> -a <authkey> -n <e-nonce> -S
 pixiewps -e <pke> -s <e-hash1> -z <e-hash2> -n <e-nonce> -m <r-nonce> -b <e-bssid> -S

 [!] Not all required arguments have been supplied!

What other arguments are used?
Are their any other usage examples?

Is it necessary to try all attacks on a single data set?