I need to adjust the config of the cqPageLucene index. In detail, I need to extend the path depth, where PageContent gets indexed. To achieve this, it's possible to add a node under /oak:index/cqPageLucene/aggregates/cq:PageContent/include4 with path=*/*/*/*/*.
What is your best practice in this case? Do you extend the out of the box cqPageLucene index or do you create a custom index with the same definition as the cqPageLucene index and the customization?
Please don't create a second index for a nodetype already covered by an ootb index. I haven't tried it myself yet, but I know from trusted sources that it can cause issues. There query engine somethings struggles, might choose the wrong index and then return wrong results.
(Yes, it might cause some work with product updates, but that's typically easy to spot...)