Currently PX cannot return single user object if task is using multi-select option.
I have to do these steps to get Subject (multi users) information and then use iterator to get single user subject.
Category: Task and Events
Type: Event Information
Function: Subject Name
But subject return long string per each user and I have to create several parsing string functions to get the data such as user id.
I think CA should provide one function which can allow user to convert that long string into user object.