Currently there is no such option available. 

If you really need it and there is a workaround for it, though it is a bit time-consuming:

  • click on Stage view;
  • go to Properties window and select Events tab;
  • select eMag Loaded event;
  • select Action by going to Advanced -> Create timer ;
  • name your timer whatever you like ;
  • set time duration of the first page;
  • click Finish;
  • click Timer Finished and select action -> here you have to finish the timer you created (the same name) and click¬†Next -> Navigation -> Go to Next Page -> Finish. To the same event "Timer Finished" you have to create a new timer for the second page. Your Properties window must look something like on the picture attached.