[racket] Redefining selectors - another newbie question

Thankyou racket gurus for your advice. My program using a "loop" now works:
(for-each (fn(x)(display x)(newline)) (.. 10 1)) (display "blastoff!")
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I have another question, is it possible (preferably easy) to use dot 
notation for the auto-generated selectors (e.g. for (point x y z), instead 
of point-x can we use point.x)? I am not exactly sure how to redefine that 
since it is auto-created on construction of the struct.

I have just donned my flame-proof clothing.

Thanks.