1. Extraction works. However, I'm uncertain if it is worth to have separate catalogs for object infos and examples (please, give an advice).
2. Translation (when put into the common /po dir) compiles and works. Translations are installed into the objinfo/<locale> dir to avoid conflicts with current lag packs. It is tested that Step can display the compiled localized HTML files.
Screenshot with translated tutorial and infobrowser (Ukrainian, clean install):
{F7773066}