Is it possible to use the filter note by pitch on all kick-notes?
No, because notes on percussion instruments don’t have a pitch. I would suggest that you temporarily switch to using the “individual instruments” presentation type; then you can select one note on the kick drum, and Shift-click to select the remainder (or use e.g. Edit > Select to End of Flow), then copy and paste elsewhere.
That is the workflow for me now, but is cost time. Maybe for the future you could filter notes on a specific lane or filter on midi or something.
Is this on the backlog for development?
Not asking for it now, just wondering if it’s tabled…
It’s on the backlog, but it’s not something we’re working on at the moment.