Hi everyone, I'm trying to understand how to make SearXNG work for my preferences. I strongly prefer "instant answer" info boxes to appear whenever there is relevant information available. Thanks to 2256ba2 I now have Wolfram Alpha info boxes for many searches, which are incredibly helpful. But there are a few other options that look very useful but don't work as I would expect them to.

I'm trying to understand the meaning and purpose of the Engines > General section labelled "without further subgrouping", whereas the Wikimedia family are in a separate section. How do these actually affect in practice the search results if !bangs are not used? Is there any advantage for example to having Wikipedia enabled as a separate engine if Wikipedia is already indexed and well ranked in Google/DDG etc. that I have enabled?

The currency engine works as expected with queries like 5 cad in usd without using the !cc bang, giving a nice info box on top of the search results.
But the next ones dont:

• ddg definitions without !ddd sometimes appear as a normal search result, usually as the first result, but the query sycophant puts ddg definitions in the 10th place, and flummox returns no results from ddg definitions. Directly in DuckDuckGo all the terms I tested appeared with definitions in an info box sourced from Wordnik.
  • Could Wordnik be moved out of Other into General so it can work without !bangs, similar to what was done with Wolfram Alpha? (Wolfram also has been consistently giving me definitions in an infobox for all of the terms I tried, but it would nice to have other alternative definitions.)
• dictzone doesn't appear to work at all, never appears in results for any terms I tried and doesn't even return anything with the !dc bang. No error messages.
• lingva would also be very nice to have in an infobox without !bangs. But I can't figure out how to make it work with or without bangs. It doesn't appear in search results, and test spanish !lv, test in spanish !lv, test to spanish !lv, test translate spanish !lv, test english to spanish !lv all return nothing. No error messages. (Again, Wolfram Alpha gives good infoboxes for all these queries, but I wonder why Lingva doesn't work?)
• wikidata / wikipedia even with these disabled it still gives me an infobox above the search results for queries like capital florida, not sure where it's coming from? (It's not from Wolfram Alpha, the info box for that one appears off to the side). But also shouldn't wikidata offer an infobox definition for most terms via Wiktionary?

Thanks a lot for any insight provided, and also many thanks for working on SearXNG.