You would need to create a duplicate of the Profiles sheet and use Query or some other method to populate it with the same data that’s in the original Profiles sheet. The original profiles sheet will only be used for the Profiles tab in the app. That’s the one that you can allow the user to edit since they will only see their own profile due to Per User Data. The relation column in the Posts sheet would then point to the duplicated profiles sheet. There you can turn off editing since it will only be used to view the profile of the user that submitted the post. @david @JackVaughan maybe this is something that could be updated in the template along with using the new relations option.