How to add vehicle number on an invoice?

To add Vehicle Number on an Invoice please go through this video:

https://www.youtube.com/watch?v=ApqiIuEB5Gs

Alternatively, please follow the steps mentioned in the article below to add vehicle number to invoice as a custom fields:

https://community.getswipe.in/t/how-to-add-document-custom-fields-only-for-specific-documents-on-web/3585