Yes. You can set a home page for each user on the users page, which is where they will be directed at login. You can use permissions groups to restrict access to pages and points, if necessary. These are also set on the Users page, but access controls are dispersed around, with core pages being governed by permissions on the System Settings page, data points have permissions which can be set individually in their editor or in bulk in the "Bulk Permissions" section of the Users page, and dashboard restrictions are in the permissions field of the page editor.