# Topic Page

(1) | Category contents Display the contents of the selected category. Click an item to display its description in the topic page. Clicking [] opens the menu and clicking [] closes the menu. And Clicking [Expand all] opens all menus and clicking [Collapse all] closes all menus.
(2) | Topic page Display the explanation of the selected content. On the upper left corner of the "Topic page", the current location of the displayed topic appears. Clicking on the link moves you to the upper level.
(3) | [Chapter] menu Select different chapters from the drop-down menu.
(4) | [Contents] Select different categories from the drop-down menu.
(5) | [Search] Click to search the desired information with the keywords. For more information, see "Search Method."
(6) | [] Click to fold the [Contents] and [Search] panel.
(7) | [Previous]/[Next] Click to move to the previous or next category.
(8) | [Print this topic] Click to print only the content currently displayed in the Topic page.
(9) | [Print all] Click to print full content of the current category.

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