To insert a control into a document, do the following:
1.Place the cursor at the desired location in the document.
2.On the Insert tab, click
Content controls.When working in macOS, you can also run the Insert > Content controls command from the command menu.
3.Select the desired control.
The control will be added to the specified location in the document.
To customize the settings of a control, select it by right-clicking and run the Content control settings command from the context menu.
The Content control settings window opens, the parameters of which depend on the type of control being edited.