Hi, just had the same question again 
To simplefy, I ask this question with the DALE reference ^^
In the DALE: Display A Single Post With A Themer Custom Template post, I discribed how to filter the Locations of each Doctor.
Now I would like to do the same with the Doctors. I could add a ACF Group to the “Doctor” page and this would work fine. But I would like to outsource this Task.
The ACF Group:
So, for example I add the ACF group to the “Doctors” page, I can display the selected Doctors with these query settings.
But if I now place the ACF group in, for example the page “Home”, how would I access that ACF Relation from the page “Doctors”?