{{Rewrite| This page is under review. Add example Coordinates, depth for each ordnance}} {{note|You can only add subobject CDFs to ''subobject tables'' - data categories that display as tables on a field report data entry form template. Examples of these subobject tables are listed below. }}
#From In the '''Customisation''' menu, select → '''Data Inventory Manager'''.#From the left pane of the Data Inventory Manager window, select a subobject table . #Expand the subobject table and select the data category to which you want to add a subobject CDF. If there is no data category under the specific subobject table select Uncategorised.
#In the right pane of the Data Inventory Manager window, click the [[Image:FieldTemplateIcon.png|Add]] button.
#In the CDF Editor window, add and save the subobject CDF in the same way you [[HowTo:Add Custom Defined Fields|add standard CDFsto the main objects]].