There you go, answer that
I'm not sure what you are trying to say here. As indicated in my previous screenshot, the ILS at PHTO *WORKS* so, the default ATC WILL surely use it.
And of course, before replying it, I tested it, so you can see in the attached screenshot the ATC is offering me an
ILS approach into RWY 26, clearly proving the scenery is correct and works, without requiring adding anything because, as I've said, the required data is being read from the default scenery.
So, the only possible explanation is, you have some kind of problem with your default scenery, which lost all data from PHTO, possibly including also the APPROACHES because:
then I uploaded the default Navaids and ILS onto the FSDT afcad PHTO
If you added ONLY Navaids+ILS (NOT required, as I've said), but your default scenery has lost the instrumental Approaches for some reason, you'll be always be offered a Visual approach.