BTW, as to mixing landscape and portrait formats etc: if all you are showing is a linear deck of slides it's sometimes more convenient to convert your presentation into a PDF. Full screen mode, full page shown, one page per click.
BTW, as to mixing landscape and portrait formats etc: if all you are showing is a linear deck of slides it's sometimes more convenient to convert your presentation into a PDF. Full screen mode, full page shown, one page per click.