That what your screenshot shows are the installed sound libraries. HSSE on the other hand is a player plug-in (VSTinstrument) that can play any sound of those libraries. When you create a new project then Dorico will pick by default sounds from several of those sound libraries and load them into HSSE. Try it out, start from the Dorico Hub with a Romantic Orchestra template. 2 instances of HSSE will get loaded and if you open the GUI of it (click the e-icon) then you see that the 16 slots got assigned with various sounds, mostly from the HSO library, but also with GM sounds.
So my next question: let’s say I just open a blank project and then end up making a (dazzlingly brilliant, Pulitzer-worthy ) 4 part, string quartet-y piece.
Now I want to try out lots of different sounds. Strings. Orchestra patches. Saxophone quartet. Just piano. Etc
As I search for sounds in the HALion pop-up, am I seeing sounds from all those libraries? If I add new libraries, are they automatically added to the HSSE big library?
To me it’s like Dorico setup mode. I feel like it’s not the most user-friendly, intuitive-to-learn interface, but when you get it, you realize it’s the most powerful option.
As a non-tech musician, I always want things to have no learning curve to “not get in the way of the music” but then that starts to sound like “I want my double bass/piano/guitar/voice/etc to be more intuitive and user-friendly” . Powerful tools take time, care, effort and repetitions to learn.
In my case, lots of time.
Thanks @Ulf and everyone who contributes to this forum.