Adding an additional parameter to a webservice proxy generated code

Hi,

we have a stabile PowerShell synchronization project to an external API based target system which cowers majority of JML scenarios.

The customer came up with a new functionality where IDM would have to perform a specific call so it would be best to do it outside of the build connector. The issue is that if we try to perform a call we get an error concerning the security of the message.

If we try to perform the call in SOAP UI setting the WSS-Password as "PasswordText" everything works. So the question is how to manually set a connection / credential parameter in proxy generated code or in the script?

Has anyone had a similar situation where it was necessary to add a parameter to a code generated in the designer for a webservice?