Where would you go to delete Actuals, Billing, and EVAs app logs?

A user is having an issue where the Utilization report has inflated hours. The billable hours, calendar hours, and credited hours are double their actual values.
Which of the following is a possible cause of this issue?

You have received a requirement to add the "Gantt" button to the Project page layout. Dynamic Forms are not in use. How would you configure this change?

Your company has asked you as the Sysadmin to edit a few Timecards that have already been approved. There are no Billing Events associated with the Timecards. What specific system permission allows you to perform this action?

What is the best practice for limiting permissions in a FinancialForce Permission Set Group?