I find that bookmarking the manual for the version than one owns, and use the “search in document” field there, brings very fast to the desired search results:
I don’t quite understand what function are you looking for…
Not quite sure I can follow you. Of course the Steinberg Help contains all Manuals of all their Products: so the filter function works nicely to filter down what you need.
But, as suggested by Daniel above, if you bookmark this Link to the Dorico Pro Help 5.1 English you land on the page with a search function. And the search is only on the actual Dorico Pro Help 5.1 English (Manual)
[CleanShot 2024-06-20 at 16.28.11@2x]