Are you looking for a way to have a "check all" checkbox on the Salesforce Admin page for Profiles and Permission Sets?

Salesforce Admin Check All is an extension that helps save administrators from having to manually check each box in a list. It does so by adding a checkbox to a list on the Setup page for Profiles and Permission Sets. When the list is checked, the associated checkbox is checked as well.

The extension also adds a "check all" checkbox to the Set Field History Tracking page for custom objects.

If you are using Salesforce, you can install this extension to enhance the functionality of the Setup pages on Profiles and Permission Sets.