Of course, I have looked at https://es.steinberg.net/forums/viewtopic.php?p=617047 already.
I am having difficulty in placing the caret in such a way the last sixteenth rest is to the left of the grace notes and not to the right of the grace notes.
EDIT: And as I go along, I find I need to add cue notes to the end of a trill (see new attachment). Per https://www.steinberg.net/forums/viewtopic.php?f=246&t=104572 from 27 Oct 2016, it is not possible to change the size of notes. Is this still the case? I was going to try and change the note sizes for putting those cue notes into a different voice.
Thanks so much, all!