While this is possible, this is not an easy or a necessary change to make to a Rent Now application.
We simply set the lead tenant as the person makes the initial application and holding deposit payment.
The lead tenant role does not affect referencing, tenancy agreement or any other part of your Rent Now application.
Where one tenant earns more than another, it's important to remember that all are jointly and severally liable - meaning they have the same obligation, whether lead tenant or not.
If you're still looking to make this change, the landlord will need to cancel the existing Rent Now application on the website, which will refund the holding deposit (less referencing costs). The correct lead tenant will then be able to apply for the property.