Show 0 as GRAND TOTAL if unrelated dimensions are used

Hello,

I am using the option IgnoreunrelatedDimensions=false to get empty values if there is no relationship between my measuregroup and a dimension. But if I am using an unrelated dimension as filter (in Excel as client tool) it still shows me the GRAND TOTAL of the measure.

I know that you can argue that this is actually true. However in my specific case it would confuse the enduser.
So my question, is there a way to show en empty value also as grand total as soon as an unrelated dimension is used in any context of the cube (filter, slice,...)

Thanks