thanks for the link! The article itself not very informative, but video is really amazing.
My impressions were: a lot of stuff already possible in the HE (as snippets/templates, snippet input, a lot of built tags, template surrounf functionality, multiplication with selected line etc), so it is possible to have something like this in HE already, using existing base. Just somebody need to spent time for adding all this code templates for HTML.
Form another side I have seen a lot of ideas which are missing in HE but will be cool to have them, as: easy multiplication of templates by *5 or numbering by $*5, merging tags by + etc. This I will note for my self as to do, because HE is not a dedicated HTML or CSS editor but generic tool can be used with any syntax. So it will be good than other syntaxes can also benefit from such functionality.
Or, from 1.50, I can also evaluate of adding such functionality as a plugin, how it already done for a lot of other editors. Than it can be HTML/CSS specific only.