Transliterate text in posts and pages from Serbian Cyrillic to Latin script. Visitor can select output script from widget.
WP Translit threat only Serbian Cyrillic characters in text and transliterate it to Serbian Latin characters.
No. WP Translit don't made transliteration from Latin to Cyrillic script. That is not even planned to be implemented.
WP Translit page in Serbian Cyrillic is placed on my blog Zapisi.