Hey guys.
I have a question regarding Custom Fields.
Lets say I have a field, which contains some set of names.
For different type of users I need to display different set of users in that field.
Could you please help me understand, how to achieve this ? Is that even possible, and if yes - then how ?
P.S. Creating different custom fields for each type of user is not an option 
If you’re literally asking for the contents of a certain occurrence of a given field to be or appear different for different users, then I’m sure Asana cannot do that, because:
(1) Field contents are never dynamic in the sense you mean - they are set by editing (manually or via Rules), AND
(2) Visibility of data is controlled at the task or project level, not at the field level, let alone sub-field level
Maybe if you described your fundamental need more fully, including intended workflow and the source of the data you want to present variably, we can think of a way to achieve it using the tools at hand: forms, rules, multi-homing, field permissions, Flowsana, etc.