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Statements in a Thinker document may be moved within the hierarchy, moved to another document, copied to other places in the same document, or copied to other documents or deleted. The movement, copying, or deletion of statements does not require that the entire structure to be moved, copied or deleted be visible on the screen as parts of the structure may be obscured by the selection of viewing specifications.It is the ability to manipulate whole structures of the document that make the hierarchical text such a powerful tool. The viewing specifications can be set to view the document in its outline form (set the number of lines for each displayed statement to 1) and the entire document can be restructured. Move and Copy and Delete options are available for individual statements, branches, and groups of statements or branches. In all cases a sequence of dialogs walks the user through the operation. Labels may be typed into many of these dialogs to designate a statement that is not visible on the screen. The statement may also be selected with the mouse if the Mark option is chosen.
In addition to the structure manipulation tools Branches can be dragged on the screen (scrolling the screen if necessary) using the drag bars displayed in the left margin of the screen.
The cursor changes to a Down arrow when the Branch will be dropped immediately after the Statement (Branch) under the cursor. The cursor changes to a Right arrow when the Branch will be dropped one level below the Statement under the cursor. If the cursor is the closed hand, the Branch will be dropped back in its original position. Only when the drop point is a legal move destination is the cursor changed to a Down or Right arrow. The cursor must be positioned over the text of the drop point.
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