[Mondrian] Composite heirarchy levels

[m h]

Hello again-

I would like to create a Level (or property for that matter) that is a
concatenation of two (or more) columns.  Is that possible.

An example is that I would like the "Store" level to be the "Storenum"
column (an int) + " " + the "Storename" column.  Then I would like to
have storename and storenum be properties (or synonyms) of that level.

Is that possible?  If so, how do I write the schema.

thanks much!

-matt