When writing a post I do not use the visual editor, preferring to edit directly in the HTML editor (in fact I have turned the visual editor off in my user profile). I wanted to add a quicktag button and modify the blockquote button, so I made changes to quicktags.js. Alas, nothing changed. When I write a post the new button isn't present, and the modifications to blockquote don't work.
I also noticed that there are a number of buttons in quicktags that don't appear on my bar when writing a post.
So is it possible to change the quicktag buttons in the html editor? If so, how?