Connectors are mostly panel-mount, with symbols for use in Panel Layout drawings. 

That said, Pictorial Schematic drawings can access line-mount symbols of connectors.

But if your project contains only Block Schematic, Rack Layout or Plan View drawings you will not see many Neutrik connectors in the Product Browser, or as being available to those drawing types, because symbols are not available for those drawing types.

You can see which products have symbols for which drawing types on our website e.g. the Neutrik library  

I hope this is helpful.

Kind regards,
Rob Robinson
Stardraw.com