Cube View formatting mixed dimensions

Use:

UD1#Something:name(|MFAccount|) (or UD1#Something:name(|MFAccountDesc|))

A#SomethingElse:name(|MFUD1|) (or A#SomethingElse:name(|MFUD1Desc|))

where needed.

Christian's comment above should work and essentially what I'm going to add a little bit of extra color to.  I have a very similar use case to the example you provided. 

I would only use Member Expansion 1 in your Rows.  If you use your Department dimension in Member Expansion 1 and your Account dimension in Nested Member Expansion 2, you'll have those two columns appear.

Let's assume UD1 is Department in your case, I would recommend the following.

For everything to the bolded Total row you showed, use the following: U1#TotalDepartment.base:A#OPEX:Name(|MFUD1Desc|)

For everything below the bold, use the following: U1#TotalDepartment:A#OPEX.base:Name(|MFAccountDesc|)