How to add Views into a Panels page
You should create a views display of type "Content pane".

Then ideally configure it to take arguments from context, and specify that the view requires a node id (or whatever you actually need). This will make the view much smarter, for example allowing Panels to hide the view from the UI all together when on a non node page.

Then add the new content panes to the page. You should be asked for which node you want to use as the source for the nid. Usually there will only be one, and you can continue without changing any settings.

And your view will now show up.