Creating multiple dashboards for a half dozen user types in Rails

I'm working on a project that involves seven different kinds of users. These users each have a very similar-looking dashboard.

They're almost exactly the same for each user, but do differ slightly:

• Higher-tier users have certain buttons visible
• The table layout includes extra columns
• Some actions related to table entries are restricted to normal users

I'd love to make the code more DRY but how do I approach this problem if partials will complicate the layout rather than simplify it, in this case?

My initial idea was to display ALL the elements, but hide/restrict them with if statements, making for one, but very logic-heavy view.

More broadly speaking, if the UI changes significantly based on the privilege level of the user viewing it, what's the accepted Rails pattern for keeping things organized?