[closed] Masking / hiding Work Item fields relating to process role

Hi folks,

for an ongoing RTC evaluation project I am looking for information how to possibly hide / mask certain work item fields depending on the process role(s) of the user opening the work item.

I am aware of the possibility to hide fields on creation (hideIfCreation) and hide fields during certain states (hideIfinState).
Is there any (undocumented) attribute like (hideIfUserRole) or (hideIfUserRoleNot) ??

cheers,
Arne