Next button to appear after all layers have been viewed?

Hi,

As per you mentioned, if you areusing default Next button of storyline slide, you have to manage jump to next slide on specific condition, ex. use variable “isActivityComplete” true/falsevalues condition make it true on main timeline end trigger. So if isActivityComplete is true means slide is completed andjump to next slide trigger will jump. Here you should have to display anymessage like “Please complete activity/animation first and click Next.”

Also alternatively if youuse custom Next button on screen and by keeping that button in disable state bydefault, you can enable it once activity/animation complete.