Before you proceed, learn about the Anatomy of the Quarterly Goal section if you’re not yet familiar.
Now, from your sidebar, navigate to the My Dash page.
Locate the My Quarterly Goals section. Then on the upper-right area of the table, click the blue New button.

Upon doing so, you will be greeted with a side-peek view of the new page you have created. In here, you will notice 2 alerts. These alerts let you know the following:
Calendar Quarter to the Quarterly Goal. Here’s how to resolve this alert.Department that will be taking care of this Quarterly Goal. Here’s how to resolve this alert
After both alerts have been resolved, you will find that all Months and Date-ranges for the selected Quarter are automatically generated. This is because they’re tied to the Quarterly Goal that you’ve just tagged.
Notice, the alerts are now gone too.

Owner property.
Owner field allows you to Tag as many members of the workspace as needed.