I am writing a humanities work in book format with LyX 2.1.2 in Linux Mint 17. I need text output in PDF format in an English language document with a few occasional words in Greek, and Hebrew.
I managed to successfully export in pdflatex the English and Greek text correctly, because the document language is English, and the entire Greek alphabet is available from Insert/Special Character/Symbols (clumsy but works). However there are only four (4) Hebrew letters available as Symbols (How do you add the entire Hebrew alphabet to the Symbols?).
If I switch to a Hebrew keyboard, I can enter all of the characters I need into the LyX editor, but when I try to export the result into pdf, LyX can not recognize the Hebrew letters I typed into my text. LyX does recognize and export to pdf the four Hebrew letters available in the Symbols menu.
In other words, how can I input more than only the 4 available Hebrew characters available as "Special Characters" under "Input".
Please be descriptive in your answer (eg. I can copy your scripts into my document), because I am a noob in LaTeX.