All the things you mentioned are in the pipeline if there is enough interest in this app (and judging from this thread, it looks like there is). Feel free to keep using the app. In time, I will add these as paid features. I want the multiple what-if scenario feature myself.
* I'd like to plan multiple scenarios at once, so the ability to save, create new and duplicate different cash flows would be useful.
* I'd like the ability to move multiple rows at once quicker.
* I'd like you to monetise this so I don't feel guilty requesting things, I'd happily pay an upfront fee (pinboard.in style?).
Thanks!