The subtree of pages of this page are only meant for experimentation with the AI Translation. See AI translation manual; there are several videos available, too, among them for the translation review tool. Please read the playground section of the manual before using the playground.
This area can be used for experimenting how translations work, for introducing translation rules etc. When introducing translation rules, use the 'caconfig' page in within the playground, not the config page in the site, since that will apply to the playground only.
For quick experimentation with translation rules the AI Translation Test UI is available - compare the documentation.