Data Bind for Unity Support
You can enable Data Bind for Unity support with Project Settings… / New UI Widgets / DataBind support / Enable. If Data Bind for Unity not installed option will not be available.
After enabling support:
will be available Data Bind support for default widgets
for generated widgets support can be added with context menu Assets / New UI Widgets / Add Data Bind Support
Disable support with Project Settings… / New UI Widgets / DataBind Support / Disable.
Support is enabled only to installed platforms. Platforms that were added after it requires enabling support again.