In the editing section, your can see a shortcut (by default it will appear at the left side of the page), and a toolbar at the bottom of the paper.
Here is a list of functions in the shortcut. You can collapse the shortcut using the top button; or choose to hide the shortcut in the setting menu.
There are 3 sets of toolbar in Animation Desk. You can switch them by tapping the buttons on the right or left side of the page.