I am building a POC for number of hours spent by each employee on a daily basis for different tasks. The employees and projects shares a Many-to-Many relationship. In my module, I have the following: Number of Hours spent (Line Item) Projects (List) Employees (List) Time However I am concerned that there are cells created for employees which does not add value. eg. Only 10 employees are assigned to Project ABC but in the module cells were created for all 100 employees. Is there a better approach to modelling this to reduce the number of cells?