If you have high polygon file and low polygon file finished UV mapping process before,
this tool can extract Normal map in one single image within 3DS Max.
So you don't need to use Photoshop to collaborate all these map images in a single image file.
Baking process will be easily done in a minuite by using this tool.
[max obj import setting]
[using]
Naming rule
1. Multi projection target (objset1, objset2, objset3, objset4....)
2. High polygon => HP_
3.Low polygon => LP_