This section describes the default grids found in the sample data base.
 
These grids are very useful to learn how to use InfoQube and they can certainly be used "as is"  without changing them much.
 
However, it's important to note that:
 
1- these grids aren't sacred (they can be either deleted, renamed, transformed as one sees fit)
2- other grids can be created
3- ... and to repeat what has already been stated in -- link to nonexistent node ID 860 -- : an item doesn't "belong" to a grid;  a grid shows any item that meets certain filter criteria (which are defined in the source bar, an "advanced" feature: Grid > Show Source bar (or Alt-S) )