Search under a specific page / tree

Just did a quick search here on the forum on the topic, but didn’t find much.

The question is whether I can restrinct a user search to a specific page and its children, to filter out results that I know won’t be relevant - i.e. searching for “person” would bee too broad if done on the whole wiki.

I didn’t find any switch or specific field, is this possible:

The forum suggested these threads:

The workable URL is this managed-schema.