+Another possibility is to use the Preferences dialog to set LyX UI to
+use your language. Note that, as of LyX 2.2, a newly introduced
+language will not appear in the languages combox unless it corresponds
+to an entry of the lib/languages file that has a "HasGuiSupport true"
+property. See this file for more details.
+
+The most comfortable way to see your updated translation while
+editing, is running (in linux) "make xx.gmo" in the po directory to
+compile updated xx.po translation and then run LyX.
+
+For advanced users - if you want to remerge your files against current source:
+
+- on Linux: execute the command: make update-po
+- on Windows: if you compile LyX in install mode, the po files are automatically
+ updated and output to the folder <compilation output folder>\po
+ Another option is to build the target "update-po" in MSVC.
+
+
+7) HOW TO CONTRIBUTE MY WORK?
+
+Send your edited xx.po file to po-updates@lyx.org.
+
+Also you can check https://www.lyx.org/trac/browser/lyxgit/?rev=master to track
+changes or watch updates.
+
+
+8) SHALL ALL THE UNUSED STRINGS AT THE BOTTOM OF .PO FILE BE REMOVED,
+ OR SHALL THEY STAY?
+
+As you wish. They can be reused for generating fuzzy hints when completely
+new strings appear, no other function.
+
+
+9) REFERENCES
+
+For a basic idea of how the translation works, you can look at
+
+ https://en.wikipedia.org/wiki/Gettext
+
+For detailed reference (including a full list of country and language codes),
+have a look at
+
+ https://www.gnu.org/software/gettext/manual/gettext.html
+
+
+Consider subscribing to the documentation list, lyx-docs@lists.lyx.org (rather
+silent), or the developer's mailing list, lyx-devel@lists.lyx.org (high
+volume).
+
+
+
+PART II - Translation of Math environments and Floats in the final output
+-------------------------------------------------------------------------
+
+As of 2.0 LyX allows automatic translation in tex/dvi/ps/pdf output for math
+environment strings (and some floats) which are not automatically translated via
+babel package to the localized form. For example the environment "Exercise"
+becomes "Aufgabe" in the output of the documents with language set to German.