Once installed, the language can be changed via the Preferences menu. However, note that the base installer’s display language is set during installation; additional languages are not downloadable add-ons but are integrated into the full Multilanguage ISO.
With the running smoothly, he noticed a minor error in the structural load calculations on page 402. Instead of hunting down the original source file, he used the Edit Text and Images tool to fix the numbers directly within the PDF. "Done," he whispered.