Firstly, thanks a lot for such a useful library! This is of really great help :)
Coming to my requirement, I was building a flowchart/concept-map kind of thing and need some of the nodes to be editable. I tried to put <input> inside <ArcherElement>, but it didn't work because of the SVG overlay. I tried putting <input> inside <foreignObject>, but it didn't help either.
Is there any way to put form elements/content editable DIVs inside ArcherElements?