I need to control the layout a particular, pre-existing node type using panels. However unless I'm not mistaken, creating a panel for a node type allows you to manipulate the layout for every node of that type, whereas what I want is a default panels layout - which I can change if I need to - but free reign over adding new content elements for each node I create (of that type).
I could override the nodes individually by entering the un-aliased path for each node, e.g node/123. However it's not very clean or intuitive, has to be done manually for each node, and I lose some useful information in my template pre-processing.
I could use the panels_node module, but this creates a new node type called "Panel", and while what I want is similar, the node type already exists - and I'd need the option of creating a new node type that uses panels later.
...or am I missing something really obvious?
Any help would be appreciated.
(Drupal 7, Panels 3)