/collaboration Repository not visible

Hello,

I would like to search over discussion content. I found out in several oss notes, that the ressources for discussions are stored in /collaboration/discussions so I would like to add this to my index. But somehow the /collaboration Repository is not visible. It is not hidden. It was excluded in 'Virtual Root Repository Manager', but I changed that and restarted server. Also with sap* it doesn't become visible.

We are using EP 6.0.4.8 and CM 6.0.4.7.

Any ideas?

Thanks in advance!

Reinhard