duplicate field with simplified field notation

[Marko0D45]

Hello, i want to create an invoce. 

I created fields with some values, A, B and C.

And simplified field notation (for example) for C is A+B. 

Problem is here, when i copy all fields for next raw i still have same A + B = C, but i want a new one A1 + B1 = C1

How can i multiply all fields for 10 raws.

Thanks

[Marko0D45]

And my fields also change names from A to A.0, ah god, its all mess here now...

[Nesa Nurani]

Rename your fields to A1,B1,C1 and don't forget to change name of the fields in Simplified field notation also.

[try67]

If your fields follow a consistent naming pattern then it should be possible to use a custom calculation script to automatically calculate the value of c.x based on the values of a.x and b.x, but it's not possible with the Simple Field Notation option.

[Marko0D45]

Yes it is pattern. But how can i make that possible?

[try67]

What are the exact names of the fields?

[Marko0D45]

Fileds name are not important for me.

I ll show you this. 

This red boxes i made in illustrator, just to make sure that i am good with space and everything. 

Now, every horizontal line is for 1 article:

No, Name or article, unit, price, discount, price with discount, total ex VAT, vat, total included VAT.

And that i need to copy for about 20 products, and i need to write in formula for that. like if discount is 10, then price with discount is (price)-(price)*(discount)/100. And i need to do that for every single raw.

I hope that u understand me.

[try67]

I do understand, but for the code the field names are crucial.

[Marko0D45]

I think that i will do this in excel... 

[Nesa Nurani]

Cena sa rabom i iznos ti prikazuju istu cijenu?

[Marko0D45]

Ne. Cena sa rabatom je cena sa popustom za jednu jedinicu, a iznos pokazuje izlaz (odnosno kolicinu)*cena sa rabatom. Samo ne znam kako da nastelujem imena da ih samo kopiram da ne bih pisao ponaosob za sve..