Hi, I want to use Notification Function in UX.
I want a function that Member can mail to Manager.
There are a function can select recipients by module.
So, I tried to use it and make this List and module.
List: Manager List & Member List
List | Manager | Member |
| X | A |
| | B |
| Y | C |
Mail Module (from Member to Manager)
Appliers To | LineItem | |
Member | Manager | Uses-Manager |
A | X | X.~.com |
B | X | X.~.com |
But in this case, I have to chose Member List in Recipient context.(picture)

I think I have to make a module has Users in Applies to.
But Users has no properties and I can not use finditem function,
so I can not find the manager address.
Mail Module | |
Users | Manager |
A.~.com | ✖ |
B.~.com | ✖ |
X.~.com | ✖ |
How can I solve this problem? (Input Manager List to Mail Module by hand is not answer)
Please tell me idea!