Talk:Wubbox/@comment-3459737-20130625152252/@comment-5832451-20130625155113

In the Nursery a third option shows up after you place the Wubbox, so now you can Place, Box, or Sell. So monsters can go straight from the nursery without placing.

On Gold Island, however, you do need to place the monster in order to box them - there is no option to do it from the list of unplaced monsters - but since the only limitation on Gold Island is physical space, it shouldn't be an issue unless your Gold Island is literally packed to the brim.