Click the Add button in the Per Object Images list. A blank line is added to the list.
An “S” (supertexture) icon appears in the File texture’s Multi-lister swatch and in the shader’s Multi-lister swatch.
Either:
double-click in the Object field and type the name of the object, or
click the object in the modeling window so that it is the only active object, and then click the Set button in the Per Object Images list. The object name appears in the Object list.
Either:
double click in the Image field (beside the object name in the Object list) and type the image file name, or
click the Browse button beside the Image field and select the image file using the File Requestor. The image file name appears in the Image list beside the object name in the Object list.