I envision something like pally power but for warlocks
-Sets a target for each warlock for curses. Has a button that casts that curse.
-Sets a target for each warlock to soul stone, and has a button that creates and/or casts the stone on the assigned target.
And perhaps just because it is semi-related incorporate a soul stone tracker into to bring different things together. (A timer that tracks active SS and inactive SS).
And a kill order mod that works similarly to ogri'lazy that just displays the raid icons in a box, or as part of the fubar plug in so it shows the raid icons on the bar. Only the raid leader, raid assistant etc is allowed to modify it. Syncs with all others to update it when the "main" person changes/creates the order.