How to include any view into the same panel To reduce duplicated panel pages for every view I want to display, I'd like to re-use the same panel (the same layout) for several views. The problem is that I can't find how to include ANY view in panel where view is passed by argument or URL. There are only particular Views Content panes available but this results in creating as much panel pages with URLs as there are views. And any changes in "common" panel content elements must be made for every panel page which is overkill.

There is analogue solution for nodes - predefined panel "node_view" ("/node/%node") which can display ANY node's content passed in URL. There's an element "Node content" which does that. 
Is there similar solution for views? Thanks in advance!
If you can use a PHP snippet in your panel you could use views_embed_view($name, $display_id = 'default') to render the view from url.

Let's suppose your panel's url is /mypanel. You can use /mypanel/myviewsname/displayname to access that panel with a particular view and display using the following code in a PHP snippet:

&lt;?php
$display = arg(2)?arg(2):"default";
print views_embed_view(arg(1), $display);
?&gt;


arg() gets a list of arguments passed through url. views_embed_view() embed a view in a PHP snippet and it will return nothing if no adequate view name is passed. This should work whenever myveiwsname is an actual view name and displayname is an actual display of that view or is not provided.

You may be able to include PHP in a panel only if you have PHP filter module installed.

You should use PHP filter module with caution.