If you ever need to transliterate chunks of Greek to roman letters, there’s a web tool for that at lexilogos. You type or paste your Greek into one box and the transliterated version appears in another.
The results can be customized in a couple of ways. Choosing “classic” puts a “pointy hat” over e to represent Greek eta and removes accents (click the image for a larger version).
Choosing “scientific” used real macrons instead of pointy hats and kept accents over the roman letters (click the image for a larger version).
Once you have chosen “classic” or “scientific,” you can click the “capitals” button to get an all-caps version of whichever you chose.
The transliteration is not flawless: notice how the “classic” transliteration omits the iota in “aeide” while it appears just fine in the “scientific” version. But even though results should be proofread, this is far better than re-typing if you need to transliterate substantial bits of Greek.