Navigate to Reports > Builder > Select your Template
Set the Report Criteria as required, and REFRESH the page to check the report is producing what you want to see.
Click SAVE at the top right, Select the Bundle you wish to save the report to from the drop down list
Give your new report a Name and Reference if required
Tick the box to Change the report title that will be displayed
Click SAVE REPORT TO BUNDLE this will take you to the Bundle screen, your new report will be at the bottom of the list, use the up/down arrows on the left side if you wish to reposition the report higher up in the Bundle order.