I tried to get a kind of conversion table for all human genes. I don't know if my settings are wrong, but I didn't find any checkbox for Entrez Gene Id in the section
External References. I've just found the Entrez transcript name ID (see below), but it's not what I need.
How can I use biomart for such a conversion?
According to this video tutorial EntrezGene ID should be an option in biomart (see screenshot below).
That video tutorial is outdated.