Cross-references are usually used when referring to files. Click the place where you need to insert the reference in the cross reference, select the numbered item as the type and the paragraph number as the content, and click the place to be quoted.

It is still inconvenient to click the tab every time, so set the shortcut key for it: click File, Options, Customize Ribbon, Shortcut, Customize, select the "Reference" tab of the category, and select InsertCrossReference of the command.

The current shortcut key that has not been set before should be blank. Press your own shortcut key in "Please press the new shortcut key", and then click "Assign" in the lower left corner.