Bookmanager 2 have advanced algorithm for creating shelf dummies. In most cases you don't need anything for shelf preparation. Just add selected polygons to the script, adjust height of the created dummies and use Books rotation option to define books orientation.


If any problem exist, remove polygons from Bookmanager and change pivot for your shelf. Set reference coordinate system to Local and select your shelf 3d model. Pivot orientation shold look like on the picture below: X axis of an object is length, Y is depth and Z is height. If it is not look like this change it by rotating the pivot via Hierarchy panel > Pivot button > Adjust Pivot