Can'not find database - rdf views tab

As written in the documentation here http://vos.openlinksw.com/owiki/wiki/VOS/VirtRdb2RDFViewsGeneration
I have installed cartridges_dav.vad and fct_dav.vad. But there are no RDF views tab inside the database tab. How to enable this feature? (having trial of commercial version license)
Thank you!

It is now just under the Linked Data -> Views tab …

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