"(My opinion is *anyone* can add such functionality to PDT through the extension point.)"
Considering that code folding, once the basics are there, is basically just finding the start/end keyword/charector and enabling them for folding - it seems to me that this should be easy to add as well.
Still, the lack of this one feature is what is preventing me from moving to eclipse from other platforms.
However, eclipse is so compelling a choice I am willing to roll up my sleeves and give it a go to add this functionality myself. Can you provide me any hints/pointers on where to look to hack through the code and give it a try?