Very, very nicely done indeed. That's a LOT of work. It takes me back to the days when I built a web-based editor for SMIL and 'HTML+TIME' nearly 20 years ago

Very, very nicely done indeed. That's a LOT of work. It takes me back to the days when I built a web-based editor for SMIL and 'HTML+TIME' nearly 20 years ago (!!). ("smibase")