Action name: SetVideoModeThis command changes the current video mode. The list of allowed video modes is kept in the IDATUI.CFG file, the SCREEN_MODES parameter.
Please note that there are two instances in this variable: one for MS-DOS and another for Windows.
If you use the MS DOS version, you need to specify the screen mode numbers valid for you video card in SCREEN_MODES. Otherwise, this command will not work.
See also Windows submenu.