It would be nice if you could change a selected font style by using the standard windows (MS office) shortcuts, such as CTRL-B for bold and CTRL-U for underline. This would save many mouse clicks.
I realize that many people don't use Windows, so maybe it could be customized in the .ini file or would be dependent on what OS your are running.
What about some kind of floating window, which is available in design mode only for the text being edited...
Like in WINWORD for example:
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