Thanks @Thalia_Marot-Achilla . I understand your pain, I’m just wondering if there is a better way to save you time. If you are doing this on a weekly basis, I assume you are launching a new project from a template several times a week, right? I’m just trying to understand why you need to bulk edit an entire project after it is launched, instead of having the custom fields already pre-populated in the template before hand.
Have you perhaps explored the option of creating more than one template? So you could have various versions of the same template but with different combinations of your custom fields already pre-populated?