Adding map pieces to SoM

[HwitVlf]

The settings have to do with when a map piece 'pops' invisible as it goes out of view behind a wall etc. So it 'optimizes' a map by drawing as few Pieces on screen as possible- not a good thing since modern hardware can easily handle drawing all map Pieces. I would just leave the flags unchecked or leave 'Optimize Map' unchecked when you compile your map in the Map editor. Then they won't blink out when they go behind stuff.