doc-view-current-slice only used internally

[Robert J. Chassell]

In emacs/lisp/doc-view.el, the documentation for
doc-view-current-slice says it is only used internally and locally.

However, I want to set the list globally in my .emacs file so I can
have a second frame in my X window environment without changing or
moving my first frame.  How do I do that appropriately?  (I.e., think
of a novice writing in his or her .emacs file.)

-- 
    Robert J. Chassell                          GnuPG Key ID: 004B4AC8
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    http://www.rattlesnake.com                  http://www.teak.cc