Several very annoying limitations in the percussion

Hi

I have been working on Dorico for several years with great satisfaction. But I’m in the process of engraving a piece with a complex and varied percussions part, and I still find very frustrating limitations considering the level of the software.

Lines : impossibility to attach the lines to the noteheads in the percussion’s kits
Silences : great difficulty to make appear the silence in multiple voices.
And, the most unbelievable limitation :
grace note : impossible to link grace notes to different instruments in a percussion kit !

Do I miss any subtleties? I manage to get my way with the first two problems using some tricks, but not the third one, which is very inconvenient.

PS pardon my french and help me please !

Introduction et diapo - - Bloc 3.dorico (1.1 MB)