You want to set auto refresh with respect to business role rather than setting it for each users separately.
- Go to Home work center.
- Select Settings Icon and select Adapt.
- Select the respective role from the list and click Ok.
- Again select Settings Icon and click on Edit.
- Select Settings.
- Under Auto Refresh select appropriate time for the question After how many minutes?
- Select Publish.
- In the pop-up screen select Update only the tiles you've changed.
- Click on Publish.
Note: You can only change this settings in HTML. In Silverlight homepage, auto refresh triggers once every 5mins.
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