Without a Groove function, it renders Studio One useless to me. Because I absolutely need to be able to control the groove/swing of the tempo and ALL instruments coherently, if not then the music will sound stagnant and robotic.
For this reason, I use Reason, Akai Drum Machines and Pro Tools.
But I adore Studio One, and would immediately buy it, if it had a ReGroove/Swing feature...similar to, or exactly like the feature in Propellerheads Reason, which emulates Akai MPC drum machines, and enables the swing to control the play timing of ALL instruments, as a whole, or even independently.
Groove Swing can make or break a song in Hip-hop, pop, and Funk genres. Although MANY producers do NOT know this, the swing is what makes people feel compelled to dance.
Many amateur producers try to imitate Dr. Dre's music, by making their own versions of his instrumentals, but their songs are stagnant and static.
It would be so wise for PreSonus to realize this, and implement Groove / Swing into their next update.