I really like the notion that you can put a Cluster defined by a TypeDef on the Block Diagram (where it "looks like a cluster", and is possibly quite large), right-click it, and have a Custom Icon that you (should have) created for it show up in its place. Very mnemonic.
How about extending this idea to all TypeDefs? I have been known to TypeDef certain arrays ("Buffer Type", "Message Queues"), and rather than have an Array Constant (with the Black Hat that clues the reader that this is really a TypeDef) on my Block Diagram, I can have a Custom Icon that might say "Message Queues" or "Buffer", thereby making it (again) mnemonic and clearer six months from now.
BS
P.S. -- It wouldn't surprise me if this has already been suggested, but a search, possibly with the wrong key word, didn't find it.
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