To use your new keyboard, you will need to set it as an option in your user interface input settings. Go to Start > Settings > Input
From here, you can select the PocketCM keyboard, and set various options, such as auto-completion and layout type, as well as keyboard size for those of you with bigger fingers. Keyboard size options cover small, medium and large, while PocketCM supports the British and American QWERTY, the Belgian and French AZERTY and Russian keyboard layouts.
Although these options aren’t available for all soft keyboards, it is common to find the keyboard added to the Input settings, and a set of options available for configuration.