I have the formula below,
and below that the column header they relate to
=+(DataSet!Y10 +DataSet!Z10 +DataSet!AA10)/DataSet!AD9
mgmtExp CashMgmtExp other NetGP

is it possible to name the columns as ranges and then uses an indexer (for the row, or any way at all so my formula would look like :

=+(DataSet!mgmtExp(10) +DataSet!CashMgmtExp(10) +DataSet!other(10) /
DataSet!NetGP(9)


??