Here's a snippet of how to link (with guidelines) from the FAQ:
How do I link multiple names to a single card?
Names should only be linked to a card if they are the focal point or subject of the card. Background players or characters should never be linked. Team cards can link every player pictured as long as each player can be differentiated.
If you go there it'll also show you examples of how it's done.
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“Aslan didn't tell Pole what would happen. He only told her what to do. That fellow will be the death of us once he's up, I shouldn't wonder. But that doesn't let us off following the signs.” - Puddleglum in The Silver Chair by C. S. Lewis