Guenter Milde wrote: >>> After leaving this environment, the graphic is rendered and put into >>> place in the LyX document. If you need to change it, you just click on >>> the graphic and the code environment pops up again. > > This is rather hard. With lilypond-book, you will have to live with > the source code in LyX.
Actually, I think implementing instant preview to InsetFlex (and make it customizable by a layout flag) should not be too hard, and it would be a valuable goal also for other custom inset (think of a tipa inset). Jürgen