Wait until the rabbit has stopped running (it stops in the middle of the screen). Then press space and drag 'the rabbit' to one side f the screen, the rabbit has found a friend! Once the rabbits have gone around in a loop (4 scene changes) the rabbits should get another edition (all rabbits look the same as they are just clones).
SCRATCH 3.0 is amazing! Thank You SCRATCH workers! . this is weird