PDF Template - Start expression in table - move up 2 tables

[chacal3351]

Hi all,

I have 3 tables:

 MainProject - MainProjectID

 Addons - AddonsID / MainProjectID / AddonsNumber / Price

 Invoice - InvoiceID / MainProjectID / MonthlyBill

I am trying to build an Invoice template with a table with a Start expression listing all the addons of the main project:

Addons	Price
<<[Start]:MainProject[RelatedADDONSs]>><<[AddonsNumber]>>	<<[Price]>><<[End]>>

When testing, it returns the following error:

Found 1 unmatched 'Start'...

Can anyone help me out?

Many thanks.

Matt