xf2 admin panel

Hi Is there a way to rename the path of admin.php to something else or is there add-ons ? In order to protect the site from brute force

When dealing with anything say adding options to an option group or Widget location, any time there are 2 columns of locations, the second column spinbox works but you can't see the number. I have discovered this is XF2 working with Chrome, I have disabled my extensions and the issue still...