Tooltips appear while hovering the cursor over a button or other interface element. It contains information about this item.
The tooltip for the button contains the following information:
Slideshow appears in 3 seconds after the appearance of the tooltip and is played back cyclically. After that to close a tooltip click a mouse button or rotate a mouse wheel. If there is a slideshow for this button, a countdown appears in the form of points in the lower right part of the tooltip. To display a slideshow, check the box Slideshow Tips during the installation of the Viewer.
The Viewer allows you to disable the display of hotkeys, slideshow, or completely disable the tooltips (see Section 15.1).