Description
This option lets you specify how each screen is displayed. For example PacMan has several layouts available to it so as long as you know the name of the layout (run the game, press tab and select video options to find out) you can make the specified screen display it that way.
Alternative Command
-view0
-view1
-view2
-view3
Example
mame pacman -view cocktail
Command Format
<gamename> -view <view name>. The example above will run PacMan in cocktail mode. -view will apply to all screens whilst -view0,1,2,3 only applies to the specific screen.
MAME's Default Setting
auto