To add new keyboard languages to your ILA, please follow these steps.
Browse-able language list is available on the next screen.
You may need to search for the language to find it.
Once you tap on the language you need, you'll be taken to a screen to customize the keyboard.
Please note that there are multiple keyboard options available, scroll-able to the left and right, as well as customization options below.
Once you've selected the appropriate options for the keyboard, tap on Done at the bottom right corner.
Next time you launch the ILA App and start a translation session in that language/dialect, you should be see the keyboard in that language and configuration.