Final answer:
To add a new report to the toolbar, you should click the 'Add Report' button. This function allows you to create a new report and add it to your working interface. Make sure to select the appropriate button for the action you intend to perform.
Step-by-step explanation:
If you want to add a new report to the toolbar, you should click the Add Report button. This option is used to create and insert a new report into the interface where you're working, which could be a software application or an online service platform. The other options, such as Delete Report, Update Report, and Print Report, are meant for different actions like removing an existing report, refreshing or modifying the contents of a report, and printing a report out on paper, respectively. It's important to choose the correctly labeled button to perform the action you desire.