Alas, I owned it about twenty years ago, probably; before I went to university. So I can't provide anything other than memories. Even then, I'd completely forgotten any control changes that might have been made. The disappointment clouds all else, subjectively.
No problem. You gave me a lot of interesting info already.
Never heard about that specific version. I used to think my Tatung Einstein was the oddest of them all - but that beats this. :-)
You know what´s odd? Ian Bell´s page don´t list that one! 
Anyway, in case someone´s interested, here´s my two MSX "Elite", both disc and cassete:
(The blank piece of paper is the folded poster)
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