This command increases (or decreases) the number of empty lines before
point.
-** The *Completions* buffer can now be automatically selected
+** The *Completions* buffer can now be automatically selected.
To enable this behavior, customize the option 'completion-auto-select'
-to t.
+to t. Then pressing TAB will switch to the *Completions* buffer when
+it pops up that buffer.
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*** Improved mouse behavior with auto-scrolling modes.