Button for Tab newest?

How could I create a button that for the current tab displays the most recently created or modified files and folders at the top? Thanks

Try

Set SORTBY=created 

or

Set SORTBY=modified

Works great with

Set SORTBY=modified

Thanks

Is there a way to make the Tab scroll to the top? Right now it sorts, but sometime does not show the most current file or folder because it is not at the top. Thanks

Try

Set SORTBY=modified
Select FIRST SETFOCUS

Works like a charm. Thank You