There is an issue for cloning items, this will part of the new UI/UX we are working on.
ref: Feature: clone functionality
uhm, a bit lost with this one, i might not be understanding you well.
dashboards will always show when anyone logs in, the data the dashboard shows can be customized so it only relates to the person that logged in (charts wont be populated based on the entire data of the system). there is no way to “show a blank page” on the dashboard … is that what you expected?