Hi Angelis,
About 2 years ago, I had written a "Retrieve User Defined Labels by Doc Type, Language" BSFN, where the labels are definable in a custom UDC table.
Here is some peaces of code from it, how to deal with 2 rows colum headings.
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0002 Get New Line Character
VA evt_cNewLineCharacter_EV01 <- cNewLineCharacter
....
....
....
0062 BF szColTitleDoubleLine = BF szColTitle1
0063 If VA evt_cSeparatorFound_EV01 is equal to "1"
And BF szColTitle2 is not equal to <Blank>
And BF szColTitle2 is not equal to <Null>
0064 BF szColTitleDoubleLine = concat([BF szColTitleDoubleLine],[VA evt_cNewLineCharacter_EV01])
0065 BF szColTitleDoubleLine = concat([BF szColTitleDoubleLine],[BF szColTitle2])
0066 End If
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Hope, this helps.
Regards,
Zoltán