Formatting Markdown in editor

How do I format a Markdown document in the DTTG 3 editor ?

Did you try typing the markdown characters like _, # etc? Seems to work here.

Ah. I was under the impression that one could select text and be greeted with a popup that included style commands, as in iWriter etc. Clearly not in DTTG.

There is nothing in the Help or Release Notes indicating this as a feature.