[Serusers] SER and SIP headers

[Curro]

Hello

I would like to ask the list some questions about headers. I've been
reading the list and textops module, but I haven't found how to do this.

Imagine a scenario with 2 SER proxies. The first proxy adds a header
like: 
Path: <....>

1 )How can the second proxy add a parameter to this header (and not a
new header)? The result that I'm looking for is something like:

Path: <....>,<....>


2 ) I know that SER can check whether a header is
present(is_present_hf()), but is it possible to extract the information
of a header and use it? I can't use search() function, because I don't
know the information, just the header name. I need to read some
parameters from a header of a SIP message to construct a new header. 


Thank you very much for your time
Regards, 

Curro