The SubCatalog element is used as a subelement of the MultiCatalog element to specify the catalogs that make up the multicatalog. The following specifies that the catalogs "Missouri_NIR" and "MODIS" make up the multicatalog "GroupOne".
<MultiCatalog name="GroupOne" enabled="true">
<SubCatalog>Missouri_NIR</SubCatalog>
<SubCatalog>MODIS</SubCatalog>
</MultiCatalog>
NOTE: Multicatalogs can be included within multicatalogs.