I have looked through the forums for this question already. (www.cern.ch/isop)
I added 2 blocks on the right sidebar, both of which are meant to display rss feeds aggregator from cds, and an other one is Indico Feeds.
When I am not logged in the block "CDS" don't show up anywhere. I have fooled around with permissions, but nothing has changed.
Once again, I apologize for my ignorance and I really have tried to find the answer before posting here.