How can I interchange places (indexes) of items on a Listbox

Hi all,

I have a listbox with some items and I need to place any (selected) item to top of the listbox. How can I do this?

Additionally, I know about AppendL and Delete functions for item Addition and Deletion on a listbox control, but I couldn't find an Update-like method to edit existing items in the listbox. Do you know about this kind of method?

Huge thanks.