How to show primary key of Parent-Child hierarchy

I have dimesion with ragged Parent-Child hierarchy. For instance organizational structure of a company. Commonly the hierarchy shows names of hierarchy items but now I need to create MDX query where result on axis 1 will be ID (primary key of dimesion) of item and name of item, but main is to show id.

SELECT {} ON 0,
{[Product].[MetaGroupHierarchy].children} ON 1
FROM MyOLAPCube

With mentioned MDX query the result is :

name1
name2
name3
...

And I would like to have:
ID1, name1
ID2, name2
ID3, name3

or

ID1
ID2
ID3


I do not know how to construct MDX query in this case.  Because main dimesion key has to have NameColumn property set to filed with name of item.