Ability to change column titles in the report

I think it would be useful to be able to rename columns, for example, projects.

If that were renamed to something like Jobs, every person who worked on that job could have the time and cost linked to that job. It would be useful for the report to be based on jobs, which should then be made to summarize the list of jobs with who worked on that job and how much it cost the company.

Can this be done? I`ve created something that works in Excel, but there is no app to record employee times while they’re working, so manual entry of all the data needs to be input into Excel directly, which isn’t ideal.