Financial dimension split in MR 2012

Hi everyone,

We use AX 2012 and are starting to build reports in MR 2012.

Our account structure is as follows : dimension 1-dimension 2-main account-dimension 3

In a MR Report, we use a tree definition to drill down through, dimension 1 and dimension 2.

When we get to the level of drill down where Gl accounts are displayed, the amounts are split by main account and dimension 3.  We would like to have them grouped by main account and that dimension 3 is ignored.

Please see screenshot for a visual.

Can we acheive this and how?

Thanks.

Denis.