@saqimtiaz we would appreciate a more flexible solution from you for sure. In part my example of “Stories” is the icons that allow you to push tiddlers between stories and other UI elements perhaps worth emulation in your solution.
More than two “Stories”, say seven (7), may particularly work if someone created a different tiddler view that lent itself to more narrow tiddlers, and operated more like a kanban board. It is in this context that I see value in providing interstory drag and drop and other tools. however we can not be sure how others may leverage your multi-story solution if it is available in new innovative ways. For example a second story (or more) could display a prior tiddler version, a tiddler annotation, the “next tiddler”, a reference or helper tiddler along side the primary story. Perhaps even one day we could replicate something like the old “google wave”.
The above ideas make me wonder if there were a way to align a tiddler in one story with that in another, introducing white space in either column (if they are of different length) so that scrolling one story/the page of left hand tiddlers align with the right hand tiddlers.
Love your work