To disable collision on a Person atom, you just select it atom and then toggle collision off in Control & Physics 1. Then when you spawn whatever atom you wanted to spawn, it won't collide with the person atom.
Cloning atoms is not possible in VAM itself, you need Keybindings for that. There might be other plugins that can do that as well.
Well a paid plugin exists that can do that, but it's not required for the above. See
Spawn Atom at Selection. I don't know if that plugin supports having collision off by default.