I can't find the checkbox to activate the option "Allow ML to correct spelling" as described here: https://cloud.google.com/dialogflow/cx/docs/concept/agent
I am in 'Agent Settings' -> 'ML Setting' tab as discribed in the linked document but there is just no option to activate "Allow ML to correct spelling". Please see screenshot.
Thanks Felix
Found the solution to my issue:
Spell Correction feature is currently not available in non-US CX regions. So I moved my DialogFlow agent from European region to US and now the option for auto-correct spelling is there. All working fine!