Xcode 4 Cmd+alt+up/down remapping

Question

I realise that switching between header and implementation files has moved to ctrl+cmd+up/down.

however this is incredibly annoying, as there is no Ctrl button near the

Answer 1

I reported a bug at apple. (Problem ID: 9125898)

Please add any details there.. [edit] oops, not possible.. Just submit another one :)