Need to add additional Fluid types in diagrams

Hello, im new using diagrams, im administrator and i need to add some additional fluid types to make them available for the designers, i cant find where to add my additional values, i have tried in Lexicon, any advice?

Need to create SYGPWL (System Group World), Each system group world contain a number of System Group area elements (SYGPAR), Which in turn contain System elements (SYSGRP)
The SYSGRP con contain child.
In E3D Model-->Admin Tab --> Configure --> System Hierarchy.

If existing SYGPWL Exist you can modify it, It is a Design Database.