Thank you for adding a post here on the Community page. I'd be glad to help share information about the labels and information in the vendor setup screen.
If you're referring to modifying the fields/labels under the Address Info section of your vendor, you can modify these fields and can select an option by clicking on the drop-down arrow beside the label itself. As of now, there isn't an availability to modify the fields to Shipping Email and Receiving Email, however, you may use the Other field and add the shipping/receiving email from there.
You can see attached screenshot for additional reference.