Do you use the ‘insert mesh’ button in the Geometry palette? I tried holding the ALT key in every way I could imagine but I could only get an additive mesh.
I also try using the ‘Sub’ button. It only adds. Seems to do the same thing as ‘Add’.
- Draw a sphere on the canvas, turn on ‘Edit’ button and click ‘Make Polymesh3D’.
- Turn on ‘Dynamesh’ button in Geometry subpalette.
- Select one of the Insert brushes from the brush palette.
- You can select what ever mesh you want to insert in the Brush > Modifiers submenu by clicking on the mesh selection icon.
- Hold down ‘Alt’ and draw the shape on the sphere. At this point, you can use transform Move, Scale and Rotate if you want.
- Hold down "Ctrl’ and drag twice on the canvas.