Adding a New Slide
From the Navigation menu, seen below, you can also add new slides to your board.
Click the navigation button and fine the slide section. The add slide button gives you a variety of templates to choose from to add to your board.
You can also add slides to your board by clicking to select a slide and pressing the “+” Add slide button.
Change Slide Aspect Ratio - In Settings
select the slide by clicking the header
click the 3 dots in the context menu
select object settings
change the aspect ratio under details modifying the width and height
You can click the lock to unlock the ratio
Change Slide Aspect Ratio - In Board
Select the slide by clicking the header
Click the bottom right corner to toggle ratio resizing.
Click and drag the corner to pull the slide to the desired size and ratio.
