Universe on top of BEx queries

Hello Gurus,

I have a requirement to create universe on top of BW reports to create Lumira reports.  But, I have read somewhere that we cant create universe on top of BEX queries using IDT (.unx), but I believe Lumira supports only (.unx).  My BO server is 4.0.  Is there any way to create .unx universe on top of BEX queries? Is it possible through upgrading the BO server or IDT ?  Please help.

Thanks

Renju