The problem with this is that I can only add BlankBlocks as child exemplars of BlankBlocks to a finite depth from the Item side. I would think the only way to do this -- to a theoretically infinite depth -- is to make it happen in the UI side of things at the creation time of a BlankBlock.
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The problem with this is that I can only add BlankBlocks as child exemplars of BlankBlocks to a finite depth from the Item side. I would think the only way to do this -- to a theoretically infinite depth -- is to make it happen in the UI side of things at the creation time of a BlankBlock.