Following is a description of the Text Patch commands, in addition to the common commands. Most of these commands are available as toolbar buttons.
Choose Tools | Options 
(Beyond Compare | Settings on macOS) and switch to the Toolbars, etc. page to define your own keyboard shortcuts, and hide or expose commands on the menus and toolbars.
The File menu
Open With |
Opens the file in one of the external Open With applications. |
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Open With | Associated Application |
Opens the file with its associated application. |
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Open With | Text Edit |
Opens the file with the built-in text editor. |
Apply Patch |
Applies the patch file. |
The Edit menu
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Copy |
Copies selection to the Clipboard. |
Select All |
Selects all visible lines in the current pane. |
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Select Section |
Selects all lines in the current section. |
The Search menu
Next Difference |
Goes to the next difference text. |
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Previous Difference |
Goes to the previous difference text. |
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Next Difference Section |
Goes to the next difference section. |
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Previous Difference Section |
Goes to the previous difference section. |
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Next Difference Files |
Opens the next pair of files with differences. |
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Previous Difference Files |
Opens the previous pair of files with differences. |
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Find |
Searches for matching text. |
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Find Next |
Finds next occurrence of search string. |
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Find Previous |
Finds previous occurrence of search string. |
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Go To |
Positions at specified line and column. |
Toggle Bookmark |
Places a numbered marker on the current line of the comparison, numbered from 0 to 9. |
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Go To Bookmark |
Repositions at the specified bookmark. |
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Clear Bookmarks |
Removes all bookmarks from the comparison. |
The View menu
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Visible Whitespace |
Shows or hides visible spaces and tabs. |
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Line Numbers |
Shows or hides line numbers. |
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Syntax Highlighting |
Shows or hides syntax highlighting. |
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Display Font * |
Selects the font to use in editor panes. |
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Increase Display Font Size * |
Increases editor font size. |
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Decrease Display Font Size * |
Decreases editor font size. |
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Reset Display Font Size * |
Resets editor font size. |
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Side-by-side Layout |
Arranges editor panes left and right of each other. |
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Over-under Layout |
Arranges editor panes above and below each other. |
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Thumbnail |
Shows or hides the thumbnail summary of changes at left of view. |
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Text Details |
Shows or hides the text details panel at bottom of view. |
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Hex Details |
Shows or hides the hexadecimal details panel at bottom of view. |
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Alignment Details |
Shows or hides the alignment details panel at bottom of view. |
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Ruler |
Shows or hides the line details ruler. |
Toolbar |
Shows or hides the toolbar. |
* Hidden by default.
