The boss parameters dialog box:
Height: Allows you to define the boss height.
Top radius: Allows you to ask for top fillet radius.
Vertical radius: Allows you to ask for vertical radius applied on the vertical vertices of the boss contour.
Blend type: Allows you to choose the type of blending between the reference face and the boss faces:
Nothing - no blending operation.
Fillet - blend as a fillet operation.
Chamfer - blend as a chamfer operation.
Blend radius: Allows you to enter a radius for the blend fillet to apply between the reference face and the boss faces.
Horizontal length: Allows you to enter the horizontal length of the chamfer to use as blend operation.
Vertical length: Allows you to enter the vertical length of the chamfer to use as blend operation.
Draft angle: Allows you to define a draft angle to apply to the boss.