Quicktext: modify recipients

Similar to the CleanSubject script, I would like to modify the recipients in the “To:” and “CC:” headers. I can see that CleanSubject modifies the “msgSubject” element, but where can I find the list of other useful elements that I could modify via a script?

For “To:” use “addressCol2#1”

Eg.: this.mWindow.document.getElementById(‘addressCol2#1’).value=“test@test.com