Hi,

This function is not supported by default. You could change the behavior of Content slider web part by yourself. Information about modifying the code of standard web parts could be found here:

http://devnet.kentico.com/docs/devguide/modifying_the_design_of_standa.htm

Unfortunately, we have not any sample codes for this functionality. It should be enough to change the javascipt function in:

your_project_folder/CMSWebParts/Viewers/ContentSlider_files/ContentSlider.js.

Best regards,
Helena Grulichova