> ## Documentation Index > Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt > Use this file to discover all available pages before exploring further. # Zoom Viewer Commands > List of Zoom Viewer commands in ABBYY FineReader Engine Visual Components on Windows — Below is the list of commands available in Zoom Viewer. Below is the list of commands available in [Zoom Viewer](/fine-reader/engine/visual-components-reference/zoomviewer). The commands can be called by: * selecting an item from a context menu, * pressing a hot key, * using the [DoCommand](/fine-reader/engine/visual-components-reference/supplementary-objects/commands/docommand-method) method of the [Commands](/fine-reader/engine/visual-components-reference/supplementary-objects/commands) subobject of a component However, not all these methods are available for each command. Availability of this or that calling method is described in the table below: "+" means that the command is available by default, "\*" — the command can be added by developer. See also [Customizing the Context Menu and Toolbar of a Visual Component](/fine-reader/engine/guided-tour/advanced-techniques/using-gui-elements/customizing-the-context-menu-and-toolbar-of-a-visual-component). | [MenuItemEnum](/fine-reader/engine/visual-components-reference/enumerations/menuitemenum) constant | Description | Context menu | DoCommand | Hot key | Other | | -------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | --------- | ----------------------- | ------------------------------------------------------- | | MI\\\_AnalyzeLayout | Analyzes layout of the active image page automatically. | + | + | Ctrl+E | | | MI\\\_AnalyzeLayoutInBlock | Analyzes layout in the active area automatically. | + | + | | | | MI\\\_AnalyzeTableStructure | Draws rows and columns in the selected table automatically. | + | + | | | | MI\\\_BlockDelete | Deletes selected blocks. | + | + | Del | | | MI\\\_BlockType\\\_BackgroundPicture | Changes the type of the selected block to Background Picture. | + | + | | | | MI\\\_BlockType\\\_Barcode | Changes the type of the selected block to Barcode. | + | + | Ctrl+5 | | | MI\\\_BlockType\\\_Picture | Changes the type of the selected block to Picture. | + | + | Ctrl+4 | | | MI\\\_BlockType\\\_RecognitionArea | Changes the type of the selected block to Recognition Area. | + | + | Ctrl+1 | | | MI\\\_BlockType\\\_Table | Changes the type of the selected block to Table. | + | + | Ctrl+3 | | | MI\\\_BlockType\\\_Text | Changes the type of the selected block to Text. | + | + | Ctrl+2 | | | MI\\\_LanguageEditor | Opens the Language Editor dialog box, which allows you to select and edit recognition languages. | \\\* | + | Ctrl+Shift+L | | | MI\\\_LayoutClear | Deletes all blocks on the page. | + | + | Ctrl+Del | | | MI\\\_MergeTableCells | Merges the selected table cells into one. | + | + | | In the pop-up icon menu of a table block | | MI\\\_Options | Shows the Options dialog box, which allows you to specify different viewing and saving options. | \\\* | + | | | | MI\\\_Read | Recognizes the active page. | + | + | Ctrl+R | | | MI\\\_ReadBlock | Recognizes the selected block. | + | + | Ctrl+Shift+B | | | MI\\\_Redo | Cancels the latest undone action. | \\\* | + | Ctrl+Enter or Ctrl+Y | | | MI\\\_Scale\\\_100 | Selects 100% scale value for an image. | + | + | | | | MI\\\_Scale\\\_200 | Selects 200% scale value for an image. | + | + | | | | MI\\\_Scale\\\_300 | Selects 300% scale value for an image. | + | + | | | | MI\\\_Scale\\\_400 | Selects 400% scale value for an image. | + | + | | | | MI\\\_Scale\\\_50 | Selects 50% scale value for an image. | + | + | | | | MI\\\_Scale\\\_600 | Selects 600% scale value for an image. | + | + | | | | MI\\\_Scale\\\_800 | Selects 800% scale value for an image. | + | + | | | | MI\\\_Scale\\\_FitToWidth | Fits image view to width. | + | + | | | | MI\\\_Scale\\\_PixelToPixel | Displays image in its actual size in pixels. | + | + | | Pixel-to-Pixel button on the bottom pane of Zoom Viewer | | MI\\\_Scale\\\_ZoomIn | Zooms into the image. | + | + | | Zoom In button on the bottom pane of Zoom Viewer | | MI\\\_Scale\\\_ZoomOut | Zooms out of the image. | + | + | | Zoom Out button on the bottom pane of Zoom Viewer | | MI\\\_Scale\\\_ZoomToSelBlocks | Maximizes the selected blocks. | \\\* | + | Ctrl+Shift+Num\\\* | | | MI\\\_SelectAll | Selects all blocks in Zoom Viewer. | \\\* | + | Ctrl+A | | | MI\\\_Separator | Adds a separator to the toolbar or context menu. | + | | | | | MI\\\_SplitTableCells | Splits the previously merged cells. | + | + | | In the pop-up icon menu of a table block | | MI\\\_SubMenu | Adds submenu to the context menu. | + | | | | | MI\\\_TextDirectionAuto | Specifies that [CJK](/fine-reader/engine/guided-tour/advanced-techniques/recognizing-cjk-languages#cjk) text direction should be automatically detected. | + | + | | | | MI\\\_TextDirectionHorizontal | Specifies that [CJK](/fine-reader/engine/guided-tour/advanced-techniques/recognizing-cjk-languages#cjk) text has horizontal writing direction. | + | + | | | | MI\\\_TextDirectionVertical | Specifies that [CJK](/fine-reader/engine/guided-tour/advanced-techniques/recognizing-cjk-languages#cjk) text has vertical writing direction. | + | + | | | | MI\\\_TextNormal | Specifies that the text in the block has normal orientation. | + | + | | | | MI\\\_TextRoleArtefact | Specifies that the text in the block has some other role, not listed below. | + | + | | | | MI\\\_TextRoleCaption | Specifies that the text in the block is a caption. | + | + | | | | MI\\\_TextRoleIncutText | Specifies that the text in the block is a boxed text. | + | + | | | | MI\\\_TextRoleLineNumbers | Specifies that the text in the block is line numbers. | + | + | | | | MI\\\_TextRoleMainText | Specifies that the text in the block is a body text. | + | + | | | | MI\\\_TextRoleRunningTitle | Specifies that the text in the block is a header or footer. | + | + | | | | MI\\\_TextRoleUnknown | Specifies that the role of the text in the block is undefined. | + | + | | | | MI\\\_TextRotatedLeft | Specifies that the text in the block is rotated left. | + | + | | | | MI\\\_TextRotatedRight | Specifies that the text in the block is rotated right. | + | + | | | | MI\\\_TextUpsideDown | Specifies that the text in the block is rotated upside down. | + | + | | | | MI\\\_Undo | Cancels the latest action. | \\\* | + | Alt+Backspace or Ctrl+Z | | | MI\\\_ViewDictionaries | Opens the Select Dictionary dialog box, which allows you to view and edit dictionary properties. | \\\* | + | Ctrl+Alt+D | | | MI\\\_CustomCommand1 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand2 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand3 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand4 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand5 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand6 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand7 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand8 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand9 | Allows you to define a custom command. | \\\* | + | | | | MI\\\_CustomCommand10 | Allows you to define a custom command. | \\\* | + | | | ## See also [Customizing the Context Menu and Toolbar of a Visual Component](/fine-reader/engine/guided-tour/advanced-techniques/using-gui-elements/customizing-the-context-menu-and-toolbar-of-a-visual-component) [Commands](/fine-reader/engine/visual-components-reference/supplementary-objects/commands) [MenuItemEnum](/fine-reader/engine/visual-components-reference/enumerations/menuitemenum)