Turn on predictive text

How do I turn on predictive text in Writer and Calc?

Does the advice at Word Completion for Text Documents - LibreOffice Help give you what you want?

No, because Autocorrect is not predictive text. However, I have now found the answer, it is Tools/ Autoinput.
Supposedly it is set by default, but mine was turned off.
All sorted now, and thank you for your input.