With the latest update, it is now possible to add custom fields to invoices as well.
Individual Input Fields for Invoicing
- Accessible in the settings menu as a new option
- Allows specifying the name and type of individual field
- Options include normal text field and dropdown menu
- Can specify where the field should appear, and control its visibility on cost invoices, revenue invoices, etc.
- Option to show in the invoice editor and invoice viewer view
- Defaults to appearing everywhere