As best as I can tell, this subject was last discussed in 2015 and nothing seems to have been done.
Often, after adding a new filter, I'll scroll down the page and discover that much more than I expected is now being blocked and I want to undo that last action. On complex sites this can be a very difficult task to determine which filter to remove.
It would be great if the user could type something like Ctrl-Shift-U and undo the last action. It might also be useful to be able to click on a button on the Blockable Items menu and display the active filters in reverse chronological order so that the most recent ones could be identified.