I assume you mean you want to copy the field definition from one table design to another.
Simply open the source table in Design View, click the row selector to the left of the desired field name, and copy it with the menu or toolbar. Then open the destination table in Design View, click the row selector of the field before which you want to insert the column, press the Insert key to insert a blank row, and then Paste from the menu or toolbar.
Rick Sprague
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