automatic - Attaches the symbol to the selected entity with a leader or freely places a surface finish symbol on the graphics window.

on_entity - Attaches the symbol directly to a surface of the model.

normal_to_Entity - Attaches the symbol directly to a surface of the model such that the annotation is placed normal to the selected surface and in the annotation plane. However, if the annotation plane is not normal to the selected entity, then the surface finish annotation too is not normal to the entity.