The code mentioned in above thread worked like a charm outside of the repeatable field group. But it is not working inside repeatable field group. Maybe we need to change the hooks.
Can you please help me with the changes that needs to be done so that we can get it working inside repeatable field group.
I did some testing and it seems that the wpt_field_options hook is not triggered at all for select fields within repeatable field groups on the post edit screen.
I have asked if there is an alternative hook that can be used, but it may simply not be possible.
I'll update you when I get clarification from the developers.
The developers confirmed that it should work, but there is currently an issue with the wpt_field_options filter which will be fixed in a minor Types update to Types 3.0.2 next week.
When that is published, please update and try again, and then let me know if there is still a problem.