Creating new Variables/objects in OLAP Universe

Hi,

We are currently using BOXI 3.1 Sp2. We have defined BEX queries on which Universes have been generated (using MDX).

We are then creating WEBI reports using these Unvierses. We are not able to add variables/objects at universe level as the XML tags do not parse. We are on FP 1.4. Is there any solution to this, or is it a Bug?