>>I know, but from time to time you want to mark some lines of your code to the person you answer or you think they are wrong.
>
>I understand. The only think I could suggest is to highlight that specific line of code below or by some related mechanisms.

Agree if this is a whole line ;o) But what if this is a part of it? Something like:

Oiriginal message code:

IF someCondition TEHN
   some line 
ELSE
   else condition
ENDIF

and you want to post the original code and mark to sender just wrong word?