Is it possible to create a component like a button in the code for my app in the new UI? If so, how?
Use the Any component block in the Advanced section of the Blocks screen.
The Create and Clone blocks are missing from the Any Component and this bug was reported from the start. This is the only place one can do the dynamic creation of components and we are all waiting for the fix. Sorry if I mislead you.
See the report of bugs in the new UI
Does anyone have a timeline for when this feature will be back?