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Expand Structure > Shapes.
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Expand the tree view and select destination section library node (such as AISC-LRFD-3.1 or Euro).
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Select the shape node (such as W or WT) that you want to modify.
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Click the Properties Command on the horizontal toolbar to display part properties dialog box (for example, if you are editing a W section, W section properties dialog box is displayed).
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Modify appropriate properties.
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Click Apply, and then click OK.
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Click the Save Command .