The intent of a minor extension is to streamline the documentation facilities,
this time for the KnowledgBuilderOptionsKonfiguration. Most is in place, viz.

<T extends SingleValueKnowledgeBuilderOption> T getOption(Class<T> option)

<T extends MultiValueKnowledgeBuilderOption> T getOption(Class<T> option,

                                                         String key)

But there is no way of obtaining the full set of a MultiValueKnowledgeBuilderOption.

So I propose to add the simple
   public <T extends MultiValueKnowledgeBuilderOption> Set<String> getOptionKeys( Class<T> option );
which will let you retrieve them all with the 2nd method above.
        for( String key: config.getOptionKeys(AccumulateFunctionOption.class ) ){
            System.out.println( key + "->" + config.getOption(AccumulateFunctionOption.class, key).getClass().getName() );
        }

collectList->org.drools.builder.conf.AccumulateFunctionOption
max->org.drools.builder.conf.AccumulateFunctionOption
count->org.drools.builder.conf.AccumulateFunctionOption
maximum->org.drools.builder.conf.AccumulateFunctionOption
sum->org.drools.builder.conf.AccumulateFunctionOption
avg->org.drools.builder.conf.AccumulateFunctionOption
average->org.drools.builder.conf.AccumulateFunctionOption
collectSet->org.drools.builder.conf.AccumulateFunctionOption

This doesn't unhide anything, does it? Any objections?
-W