In my group, we typically response to reviewers comments (in latex) by first defining the following command in the header

\newcommand{\response}[1]{\textcolor{red}{#1}}

then marking up the text as follows

\response{red text}

I try to do the same in org, i.e., putting

#+latex_header:\newcommand{\response}[1]{\textcolor{red}{#1}}

then \response{BLAH BLAH} in the text. The only snag is that on export I get \response\{BLAH BLAH\}

Any suggestion how to fix this

cheers,