Categories sort and shift as IPhone Apps

It should be possible to sort and shift the structure of the categories by click and hold (as we can do it with the apps on the iPhone)

Also we need to shift and sort the under categories in the category. Actually it is just possible to delete it!!!!

Important is: IF we shift one undercategory to another, all the transactions made before has to be changed to the new category definition. Therefore it has to be shown correct in the Diagramme.

For example I have a CAR-category, in this I have taxes, insurances, gasoline…
I want to pick out the gasoline in a own category but this is not possible.