Importing a house style

Right now you have the trill interval set on Perfect Unison which does a bisbigliando on one single pitch (i.e. a trill between A natural and A natural instead of a trill between A natural and Bb). I think you want a minor 2nd and not a perfect unison, and to get the brackets you can go into Engrave Mode->Engrave Menu->Engraving Options->Ornaments->Trill Intervals and select the desired “Trill Interval Appearance”.

Terrific, thank you!

Thanks, Leo! That helps greatly.

But I still consider that import/Export House Style functions would be worthwhile, as they would include more features. – Unless the Sibelius method is in some way copyright…

David