Is it possible to do an update from the standard to the extended version without loosing previous data and also not loosing the previous setup if I already have people on the website?
Better to ask it directly to the theme author here as a comments:
@mgscoder do you know how to comment here? (I dont find the commend/text button)
You have to log in themeforest first then go to at the very bottom there you will find field for comment and button to submit. Thanks