Property grid item re-order

2 things:

1) I would like to allow the re-ordering of properties within a category, letting the user right-click on a property and allowing them to move the property up or down in the grid.  Is there a way to do this?

2) I have already implemented a 'Move to Category' option by inserting a new property and copying the old properties to the new property/category and then removing the old property.  Is there an easier way to achieve this?

Thanks,
Derek