I want to create a relationship and select specific list and select the rollup fields for it, but instead of linking tasks together for the rollup to work, I want to get all the tasks for specific assignee For example:- I have a list called (Development) and a list called (Planning), and the planning list has a custom field (type ==> People) called (Employee), and I created tasks for each user (User 1, User 2, User 3) in the planning list and filled the employee field with each user 1) Task 1 ==> employee (User 1) 2) Task 2 ==> employee (User 2) 3) Task 3 ==> employee (User 3) and int the development list, I have tasks for each user assigned to them Now I want to create a relationship custom field between the planning list and the development list by mapping the assignees in the development list with the employees custom field in the planning list instead of linking each task in the development list with the main task in the planning list manually So we will have rollup value for each employee with all his tasks assigned to them, and if any new task created in the development list automatically will be included in the relationship