You may use =include to split your presentation into multiple files,
That is, =include("foo") will insert the content of
file into the current Pll file.
You may use =comment to skip certain parts of your
source file, e.g. say that Jack Torrance wishes to hide that he
is insane, then
=slide The Hotel has a very interesting story...
=include{"the_story"}
=begin-comment
All work and no play makes Jack a dull boy
.....
=end-comment
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