Request for Stand-Alone Search Field (w/ Multi Engine Supprt)

New Brave user here - coming in as a longstanding Firefox user, am loving things so far - but really missing the ability to configure a separate, multi-engine search field. i.e. one located off to the right of the URL bar :
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I’ve seen multiple topics on this same request, but wanted to explain the use case in a bit more detail - having the ability to instantaneously submit a search into many different sites, say - discogs, amazon, wikipedia etc. all the while still having the URL contents in view is a power use case that is tough to achieve in other ways, (I’m aware of the keyword switches etc. but all those require more input gestures).

An ultimate implementation would allow grabbing arbitrary search fields from sites and stuffing into the list.