show ghost notes of other channels feature

there is this feature in live and fl studio where you can see the notes of other channels as grey ghost notes behind the current editor window. this is awesome to bring everything together and see where things overlap in one view. it there a way to do this in synfire? its really hard to guess arrangements in other channels

I sometimes bypass this by arrangeing everything in one channel first and move everything to different channels afterwards so nothing overlaps and the groove is right

is there a better way to do this and what is your optinion on the ghost notes feature