You can fully customize the Overview page and arrange every element as you need it to be displayed. Just click on an element, then drag & drop at the spot you need it to be placed.
You can even delete an element, if you do not need it.
Then you can simply save the dashboard.
A user (and any user/s of the account) may have as many dashboards as neccessary. You can save a dashboard or delete it.
If you need the dashboard to be displayed as it was initially just click on the "Reset Dashboard" button.