Does anybody know if it is possible to add additional drilldown dimensions after your own choice in ITP?

The situation is that when you are comparing two plans in IT Planning in the Summary view, it would be beneficial if you could choose to add further drill down options.

I.e. when we investigate a Cost Object and the associated Accounts like below, we would like an additional detail level (column) we call 'Internal Order', which basically is a description of the cost items - this could be an activity or a software license. It would be beneficial to be able to add this dimension (or other), as it would make it possible for us see the variance on 'Internal Order' level.