Using inactive relationships for table's row headers

Hello,

I have 2 tables. The first has a list of projects (with a project ID field and project manager, quality controller and credit controller fields (last 3 have employee ID's as values)). The second table is a list of employees (employee ID and employee full name fields).

I have joined the first table to the second with 3 inactive relationships:

'Projects'[Project Manager] <-> 'Employees'[Employee ID]

'Projects'[Quality Controller] <-> 'Employees'[Employee ID] 

'Projects'[Credit Controller] <-> 'Employees'[Employee ID]

Please can you tell me the simplist way to allow the user to drag and drop fields as table row headers, while allowing the user to choose what inactive relationship is used?

e.g. two users may want row headers "Project ID" and "Employee Full Name" in their tables. But one user may want to use the "Quality Controller" indirect relationship and the other user may want to use the "Credit Controller" relationship. Please can you tell me the clearest way to give this functionality?

Thank you,

PW