We need an "Unicode Editor." It will allow you to select a certain unicode
range, such as a specific language or script, and then choose from a number
of fonts that support that range, or give the opportunity to download or
buy a font that supports that range. Liboffice apps can offer a choice
between "type mode" and "unicode mode." Libreoffice should come with all
free unicode fonts. There should be an option on the toolbar that asks you
to select mode, and you can select from "type" and "unicode." After you've
selected mode, there should be a box that asks you to select an unicode
range, and then another box should ask to select from an number of unicode
fonts. The boxes should say "Select unicode range" and "Select unicode
font."