Currently, the only way to pass data between pages in a prototype is through using a variable. You can set a variable (like ScrolltoVar == Anchor3) on the previous page, and then open the new page. In the OnPageLoad of the new page, use a condition to check for the value of ScrolltoVar and use a "scroll to widget" action accordingly. There aren't any plans as of now to change the way this works in the beta, but we're still considering features.
Thanks for your feedback!