A atom package that adds more functions for multiple cursors
Reverse selection: Reverses the current selections. For each cursor it also selects the surrounding word if the cursors doesn't have a selection.
Insert letters: Inserts letters on the current cursors
Insert numbers simple: Inserts numbers on the current cursors, starting at 0.
Insert numbers: Opens up a dialog, which lets you choose a starting value and an increment value to insert numbers on the current cursors.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.