Use this dialog box to change the display order for point groups in a drawing and to update out-of-date point groups.
Also, use this dialog box to select a point group when needed, for example to add a point group to a surface definition or to specify a point group when creating a point table.
A point group is out-of-date when 
is displayed next to a point group name.
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Show Differences
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Displays the Point Group Changes dialog box.
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Update Point Groups
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Lists the point groups in the order they are drawn. Select a point group to change its position in the display order or to add it to a surface definition. For more information about point group display order, see Changing the Point Group Display Order.
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