Combining dimension objects

Hi Guys,

I have 2 dimensions objects - "Manager Name" & "Director Name" belonging to the same class in my Universe. Now, I want to combine these 2 objects into one so that I have a single list.

1) Could anyone please help me achieve this in Webi 4.1?

2) Also, can I combine them in the Universe (UDT 4.1) itself?