have a reset ([x] button) in the search field

It will be convenient to have a reset for the search bar on the main window.

This could be in the form of a [x] button shown at the right end once any text is inserted to the search bar.

Currently any search text needs to be erased using backspace to revert back to the complete list.

Cannot use 'Delete' key as this leads to the delete dialog box to pop up.