XPages view control link manipulation
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I have a view control and at least one column has the option "Display as link" set. The link is generated manually. What I want to achieve is to add a url parameter which is added to a view column link. The usual link would like this

"http://host/path/file.nsf/$$OpenDominoDocument.xsp?databaseName=server!!path/file.nsf&documentId=03871DD0B47F88D4C12576AB00623137&action=editDocument"

What I would like to have is: 

"http://host/path/file.nsf/$$OpenDominoDocument.xsp?databaseName=server!!path/file.nsf&documentId=03871DD0B47F88D4C12576AB00623137&action=editDocument?param1=value1&param2=value2&etc..."

There must be a (presumably easy) way to achieve this - unfortunately I don't know how... 
Any help or hint is appreciated. 

Many thanks in advance. 
Michael