Sure.. The idea is that the issue with tags is they can be difficult to trace to all their referenced locations. I find myself not using them because they are

Sure.. The idea is that the issue with tags is they can be difficult to trace to all their referenced locations. I find myself not using them because they are difficult to keep track of.. you can't 'see' them at a glance. But we don't need to see all the referenced locations, just the tree which leads away from the item you are looking at. So you get strict split between, and easy to understand, [left / right], [hierarchy / reference] organisation. Would make it easy to position and re-reference information. And would let you see referencing visually. Below for a really rough idea of what I am talking about. - list 1 - sub-list 1 - item A | - sub-list 1 - list 1 - item B | - item C | - sub-list 1 | \ sub-list 3 - list 2 - sub-list 2 - item D | - sub-list 2 - list 1 | \ sub-list 3 - list 2 - item E | - item F | - sub-list 4 - list 2 - list 2 - sub-list 3 - item G | - sub-list 3 - list 2 - item C | - sub-list 1 - list 1 | \ sub-list 3 - list 2 - item D | - sub-list 2 - list 1 | \ sub-list 3 - list 2