Portal summary - minus first 5 rows

[TJ53]

Hi,

I neeed to have a sum field that calculates the total of a numeric field for all the related records minus the value of first 5 portal rows. That is, if the portal looks as follows:

PORTAL:

row 1: value=2

row 2: 3

row 3: 5

row 4: 2

row 5: 4

row 6: 1

row 7: 8

I need a sum field that would give me "9" as a result (row 6 + row 7), disregarding whatever values are from portal row 5 to above ... any ideas?

Thanks very much in advanced!

[BobWeaver]

See this post:

http://www.fmforums.com/forum/showtopic.php?tid/92703

[TJ53]

Thanks Bob, I also got the solution by using Get(RecordNumber).