You can activate
On the Applications screen, tap Settings →CONTROLS
Use the Samsung keyboard or the voice input feature to enter text.
Text entry is not supported in some languages. To enter text, you must change the input language to one of the supported languages.
Changing the keyboard type
Tap any text field, open the notifications panel, tap Change keyboard, and then select the type of keyboard to use.
Write with a finger or the S Pen.
Enter punctuation marks.
Delete a preceding character.
Break to the next line.
Enter a space.