Actually, if I understand your issue, this already works fine in Word 2003
(probably earlier versions, as well). For example, I just created an
AutoCorrect entry for:
fishign
to automatically correct it to fishing.
If I type Fishign or FISHIGN, both are automatically corrected to Fishing
and FISHING.
Is that what you mean? If so, it happens automatically. No option is needed.
I tried various settings to see if I could get it to NOT automatically
correct (e.g., enabling "Ignore Words in UPPERCASE" in Tools - Options -
Spelling and Grammar). However, it continues to work regardless of what I
do.
Try "fishign" "fishing" as an AutoCorrect entry pair. Does it NOT work for
you?