How to change the name format for the buyer using customization(First name, Last name)

Summary:

We have a requirement to change the format of the Buyer name while we are creating the Purchase orders.

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We have a requirement to change the format of the Buyer name while we are creating the Purchase orders. I have tried changing the expression builder as #{bindings.DisplayName.hints.displayWidth}, but there was no changes. Is it possible to make the change as such?

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