Question - How can I do a custom report by form with eldest dob at the top?
Answer - Go to Reporting>Reports>Custom and click Create a Report and then click on the green button New Report.
Next, from the left hand side (Filters) tick the required year and Run the report. Go to the Date of Birth column and click in the coloured area of the column header. This will sort the column into ascending/descending order.
You can remove unwanted columns by clicking on the recycle bin in the column header. The report can be saved by entering a name in the box at the top of the report and clicking Save Report Definition.
The report can be readily accessed by going into Reporting>Custom Report and clicking on Run.