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Conditional parts
Sometimes not all parts of a source should be in included into a document. Think of handouts which should not go into a presentation, second language versions which do not have to be included into a document in the first language, solutions of training exersizes or advanced parts of a course. PerlPoint allows to include and exclude such parts dynamically, depending on conditions expressed in Perl code.
Active Contents needs to be activated to make conditions work, otherwise all conditions will be treated as false.