Select which picture settings to use when loading a preset (resolution, anamorphic mode, cropping).
'None': do not alter the current picture settings (for a new source scan, same effect as 'Source maximum').\n'Custom': choose the maximum width and height allowed by the preset (has no effect if the preset specifies Strict anamorphic).\n'Source maximum': use the source dimensions. Enter a description for the preset. The description will be shown when hovering the mouse over the preset name in the preset drawer. Select the maximum width allowed by the preset (has no effect if the preset specifies Strict anamorphic). 0 means no limit is placed on the width. Select the maximum height allowed by the preset (has no effect if the preset specifies Strict anamorphic). 0 means no limit is placed on the height.