Thank you for that ernesto :-)
I have just taken a look at the video and will try to apply what you have shown me. There are a few things there that I was not aware of.
What I would like to do in the end is have a report that shows the top level inspection data and loops through the sub level records (add_an_outlet, add_an_inlet, add_defect records for each inspection in either a table or a sub report using the Parameter and the PARENT_ID and ID relationship.
I really do appreciate you taking the time to create a step by step video for me...amazing!
I'd better get to it - will let you know how I go.