Show invoice rows on the Notification Details Page

Question

My problem is that I want to show all invoice rows on the Notification Detail Page but I don´t want to define an attribute for each row because I don´t know how many rows it is on the invoice(it could be 1 or 100 or more).
I have made a solution for 10 rows. I have defined a message with 10 message attribute and in the HTML Body I specify all 10 rows with its internal name.
How to make it to avoid defining all rows? Anyone having an idea?
Regards Sofie

Answer 1

Thanks for your answer.
I will explain little more about my problem.
I have 6 different values that should be presented on each row, like this:
2451 7801 0 0 34 USD
In version 2.6.2 I added all these values with an appropriate number of   between the fields and put them in an attribute. Now we have upgraded to 2.6.3 but the html code is parsed different. So instead of space I get   in plain text like this:
2451      7801       0 ....
I tried to use an html table, but I get the same thing there. I put <td> - elements around the different values but get &lt;td&gt; instead of <td>.
If the html code have been parsed on the same way as it did in 2.6.2 I could have put all rows in one attribute as you suggested but now I don´t know how to make it.
Now I can´t have the 6 individual values in one attribute because I can´t format it as I want.
Any idea?