The user interface in the ‘Application Rules’ of the firewall settings allows you to search and it filters the list BUT.
You can multi-select applications BUT ‘Edit…’ only edits the LAST selected item, not all of the selected items. Really annoying and worse…
After editing just one, the whole list resets to NO FILTER, despite the filter box still having the search term visible. So you need to click on the search box and edit it to make it filter again. Really annoying.