I have been trying for a week to change the duration of the slides in two presentations that I have embedded on my WebQuest on Google Sites.  The WebQuest is due this week and I need to have the slide duration changed from the default of 3 seconds to 30 seconds.  I have posted on other forums and not received any help.  I have read the forums but cannot find the buttons and drop down menus that they reference.  Please help.