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A book can be browsed, starting from any position in the tree. The position can be the current one (Search position in book) or any position, identified by its number (Show position from book). In the latter case an Input box allows the input of the position number (by default the last position in the file is proposed).
A Browse book window appears:

The Window shows some information (number of the game from which the position has been extracted, position number in the book file, ECO code of the game, parent position number, number of games of the original CBF file where the position has been found). A set of buttons allows the browsing; it is dynamically built based on the tree ramification.
If the current position is a terminal position, the moves are also played in the game text, otherwise they are just shown on the board, until the final move in the book is reached (corresponding to the book depth). If you start from the initial position and repeatedly press the first button, you get the most used line in the book.
It is possible to load the games in the current line (they can be appended to the export file). To load the games corresponding to a certain book position, the current CBF file must correspond to the book file. Please note that the tree can be interconnected (due to move inversions), thus not always the same tree node is reached, going forward and backward. The buttons are listed in decreasing order of importance (according to the number of games found for each branch).