Quote: use focus keys to select syntactic units, e.g., the first argument; First, Next, Last, Widen

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the ABC system has a multicharacter focus [to select text] … the ABC focus is based on the syntax … For instance if you are focused on the … of the command: PUT "a-b" in a … There are Next, Widen, and Last keys to … the editor doesn't need lots of commands to … [or move] characters, words, and lines.   Google-1   Google-2

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Topic: selecting text with a mouse (14 items)