1 · Connect the parish database
This is the same Database Folder linked in the Mass app’s Setup — the parish’s one source of truth. Hymns and other music are saved under a masters sub-folder; the Mass Ordinary (Kyrie, Gloria, Creed, Sanctus, Agnus Dei) under a separate ordinary sub-folder, kept apart to avoid confusion; and the sung parts of the Daily Office (preces and responses, canticles, …), which the Office Leaflet sets in place of the said text, under an office sub-folder. Both are created automatically the first time you save. Make sure the folder is shared Anyone with the link · Viewer so the viewer can show it.
2 · The picture
3 · What is it?
4 · Save
Saving under a category + setting/title that already exists replaces it in place (same Drive file, links stay valid) — so to swap a low-quality image, just drop in a better one and save the same details.