Changing “Edit – Quick Edit – Delete – Show” line from edit posts

Hello there.
If you are an administrator or editor you have some special features under the Edit Posts page.
You can edit, quick edit, delete your posts.
This line of options, shows up when you hover your mouse into one of your posts.
I would like to edit that line so I will make some changes.
Any help on what file should i edit?

Thank you all!