Share Email Facebook Twitter LinkedIn To Add a Callout Block to a Sheet Click Window menu > Project Manager. In the Project Manager, open a Project. On the Details panel for the project, click Callout Blocks. Click Manage. In the Callout Blocks dialog box, click the (+) Add button and specify a new block to be added to the list. Related Concepts About Sheet Label Blocks and Callout Blocks Related Tasks To Change the Default Block Used for Sheet View Labels