All the boxes can get very cluttered if you do not move them around and organize them.
1) the first thing you have to do is zoom in on the twine game so you can see it well. Or zoom out if you need a better look. The zoom in and zoom out are the plus and minus magnifying glasses.
2) The second thing you have to do it grab the box you want to move and click on it and hold.
3) The last thing you do it move the mouse wherever you want to move the box to. Make sure you are still clicking on the box though because if you click off it will not move.