anchor.diff:          scroll to put the main selection on the bottom line of the window
   
       *h*:::
  -        scroll the window count columns left
  +        scroll the window `count` columns left
   
       *j*:::
  -        scroll the window count line downward
  +        scroll the window `count` line downward
   
       *k*:::
  -        scroll the window count line upward
  +        scroll the window `count` line upward
   
       *l*:::
  -        scroll the window count columns right
  +        scroll the window `count` columns right
   
   == Marks
   
  
positive.code: 
  *<a-&>*::
      copy indent, copy the indentation of the main selection (or the
      count one if a count is given) to all other ones
  
  *`*::
      to lower case
  
negative.code: 
  *@*::
      convert tabs to spaces in each selection, uses the buffer tabstop
      option or the `count` parameter for tabstop
  
  *<a-@>*::
      convert spaces to tabs in each selection, uses the buffer tabstop
      option or the `count` parameter for tabstop
  
  *_*::
      unselect whitespace surrounding each selection, drop those that only
      contain whitespace
  
  *<a-)>*::
      rotate selections content, if specified, the `count` groups selections,
      so the following command
  
  ----------
  