Comment 23 for bug 170324

I'm afraid that the lack of proper sub- and superscript is a major drawback when it comes to scientific drawings. I'm currently typesetting with latex and then importing the eps to inkscape, which is just ridiculously tedious. I'd be happy to help coding if someone could point me where to start. I suppose that using the implementation of the "italic" button as a template should be a good starting point?