Cant Figure out which ad is which name

[1] Install Google Publisher Toolbar:
https://chrome.google.com/webstore/detail/google-publisher-toolbar/omioeahgfecgfpfldejlnideemfidnkc

[2] When “overlay” shows, click on it and note yourself ad unit UUID “8-4-4-4-12” name.
https://en.wikipedia.org/wiki/Universally_unique_identifier

[2a] Don’t click if you don’t know what “overlay” is.
https://support.google.com/adsense/answer/2631190

[3] Find that name at https://www.google.com/adsense on “My Ads” list, click on it and – change it to your prefered name.

[4] Voila! Now you can see your custom name for that unit in Performance reports!

[5] If something goes wrong or there are some side-effects, please don’t blame me :X