View-Only Fields on Webform Based on Role/UID

Is it possible on a webform to set certain fields as View-Only (non-editable) to the end user? Scenario is that anonymous users will have access to webform, but certain fields need to be non-editable by them, however, administrator needs edit access in order to set those fields after the form is submitted by anonymous user to mark whether information submitted was approved or rejected.

Marking a field as private will not work for us as there are other UID’s that will not have edit ability on those fields, but will still need to view those non-editable fields.

I’ve searched for a module, but all I came up with was this:
http://drupal.stackexchange.com/questions/189636/editable-webform-fields… .

Thank you in advance.

Drupal version: 


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