Handle vowels with accent marks

[bittlingmayer]

As you know, it is rather common in Slavic texts to use accent marks to disambiguate between homographs, or to indicate intonation or vowel pronunciation.

https://en.wikipedia.org/wiki/Ye_with_grave and https://en.wikipedia.org/wiki/I_with_grave_(Cyrillic) are rather common in Macedonian.

[Syndamia]

The way to implement this is to use some letter combination that shows this in the latin version of the text. For example, "E" is represented with "Ye" and following that logic, we could represent "Ѐ" with "Yѐ", but I don't know what are the most appropriate latin letters.