Editing AddOn Studio for World of Warcraft documentation (section)

==== Localization ====
''Content Rollups for Localization''

:''Note: Anything described here is solely for your own personal use concerning content you already have license to use. Redistribution of Blizzard files must be in accordance with the TOS and License.''

For those who have to deal with multiple language versions of WoW, you can strip down the installs making one set of manageable content for development. A starting from nothing 'complete and proper' way to do this is to either 1) obtain each language ToolKit and manually merge, or 2) obtain multiple language WoW installs. One way to obtain the multiple language installs, in addition to the WoW languages you already have in your own WoW install, is to go and download additional trial versions in other languages. This is important for testing with the two non-western sets of languages: character based like Asian languages, and right-to-left languages like Arabic. With the Panda versions of WoW this for many will start becoming a support issue.  Getting there is way harder than it should be, and how to get there goes like this...

# For downloading extremely foreign language versions of the trial, you will have to be crafty in navigating foreign language web pages and creating logins. In doing this you have the option of downloading the trial version with 'additional' languages, just like the U.S. download pages have the option of downloading with es-MX or not.  Each of downloads will also contain a fallback version of English UI content.  I would suggest getting the extra language versions.
# Once you have downloaded, say, the Taiwanese with extra languages support, can install to "wowTw" folder instead of 'wow' or 'world of warcraft' to keep them separate. After the install, wait until the WoW Loader has completely finished downloading. Start that WoW, log in, accept the TOS, then go back to the loader. In the loader, specify each of the alternate languages, and let the Loader again download the whole language. Start the loader once again and make sure there's nothing else for the loader to give you. Once you have installed, this copy of WoW will mark itself in your windows registry as "the current version of wow". AddOn Studio by default will pick that install of WoW, which you can change in the AddOn Studio settings. 
# The only relevant portion of the install theoretically for AddOn dev is in the 'Data' folder. Inside that folder are folders that look like 'enTW' and 'zhTW'. Those are the language specific portions of WoW and are also the UI specific portions in total. The WoW UI content is always language specific, even if there are redundancies between them. In this case 'enTW' is English localized for Taiwan, and 'zhTW' is technically Chinese localized for Taiwan even though its really kind of its own language, and just to give you some context and perspective. The 'WTF' folder in the base WoW install folder can also be significant if you are trying to ensure or test variables. AddOn Studio will use the currently set WoW language by default, which is stored in the WTF folder in Config.wtf. Which language AddOn Studio uses can also be changed in the AddOn Studio settings.