In the classic desktop sharing presentation, you use the mouse cursor to direct the attention of the participants. If you want to point out a specific point or area, you move the mouse there.
Modern online presentations, however, are interactive and dynamic. Often, other documents or online content are shown alongside the presentation. The mouse movements of the presenter are transferred here also with the search for suitable contents inclusive the display of his screen so that one can watch him.
This problem can be solved elegantly e.g. with Ping Points. Only a click into the presentation triggers a ping point visible for all participants. Also the participants have the possibility to create ping points by clicking into the presentation and thus to direct the attention to a certain area, e.g. in case of a query.
This mechanism promotes the dialog during a business talk and ensures that only the desired is pointed out.