Now it is possible to create an Multi-Admin logins that will restrict the user from accessing other areas of the admin control panel. For eg. you can create a login for your fulfillment center to take care of only orders in the admin panel, or you could create a login for someone in inventory to just update the products inventory and you don't have to worry about him going somewhere else. The sub-user can also change the password it is assigned.
Click here to see screenshot on how you can grant permissions to each user, or alternatively see it in action by visiting this page (User: mystore Pass: changeme) for only Orders section use (User: orders Pass: changeme)