Provide FLS permission to Profile

Here is a simple tip to check all checkboxes in a page. I found this particularly useful in granting FLS permission to a profile. Go to your profile > Object Settings > The object you want to add FLS to & click on edit button, Open Developer Console. If you are using Google Chrome, it is available in Menu > More tools > Developer Console Enter the following code snippet in the Console and hit enter, This will check all checkboxes in the page, Save your page.