How do you Add Invoice details to Zetadocs for NAV email

I have the example given by Zetadocs:

FAO: %%[Name]

Dear Customer,

Please find attached your invoice, number: %%[ZetadocsRecordNo].


The Name is from the Customer Rule (Delivery, Use alternate).

The Invoice No. is based on the field number in the Report Setting Record No. Field No.

Is it possible to get the other details from the invoice header?

We are using RTC for reporting.

NAV2009 R2

Zetadocs Client Version 8.0.213