Perspective provides insight into the scroll of the Primary View through page properties, but these properties are read-only. To manage scrolling, your best option is probably to provide domId attributes to specific components and navigate to them with a URL that includes their emitted id attribute.
For example, if you have a very "tall" View - say, 2000px in height - on your /demo page, and a component 1200px down the View (out of View on most monitors) which has a META.domId value of target, navigating to <gateway_address>:<port>/data/perspective/client/<project_name>/demo#target would result in the component being visible as the View will scroll to the specified id.