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I'm trying to use CCK in a "modular" fashion, but running into some walls: I've created a content type which I'd like to contain 4 node reference fields, all of which are basically the same. I've created a generic node reference field type, but I cannot add this field type more than once to the same content type.
Perhaps I'm misunderstanding the way fields are used, but the section of the form where I customize how the field is displayed withing the specific content type make it feel like an "instance" of a defined field type. Yet I cannot select that field type again in order to customize it differently (give it a different name, etc) within the same content type.
From my current understanding of CCK, this seems like an obvious feature--why create multiple fields that are all effectively the same, when you can create one, and have multiple tweaked instances of it?
Is this just simply allowing an existing field type to still show up in the "Add existing field" select box, or (much more likely) is there something else going on that I'm missing?