Thank you for reaching out to the Saviynt forums.
We kindly request that you provide additional details regarding your use case so that we can better assist you. Your cooperation in providing this information would be appreciated.
You can update this by navigating to Admin->Settings->User Interface Branding Configuration-> Manage Labels. Please note that this is just a label change and will reflect for all the applications on the request page.
If you are looking to add a separate section or customize it for a single application, it will be an enhancement at this point and I would recommend raising an idea in the ideas portal.