Network map or business view

OpManager by default creates network map for routers and all connected networks.

But I need to see links between switches and other network devices. As I understand I need to use Business View for this purposes.

Is it possible to automate links location or I must draw them manually? Manual drawing is sophisticated because I have a quite large network. And I need to have information about connections. Where is this information stored?

So, how such network map can be provided for me? Is there another product to do this?