Found your plugin very useful and just rated it with 5 stars :-)
I used before to put the famous "Silence is golden" index.php file in almost every folder but could easily miss one.
Now with this plugin, I guess my site will be more secure.
By the way, I just changed the row "8" by row "20" as there is plenty of space on the admin side and I didn't want to scroll to list all the directories.
Maybe this row setting could be highered a bit by default in the next version (?)
THANK YOU for the great work!