Repeater Beta Help

I’m using the new repeater beta code and I’d like to add a dropdown field. I’ve changed the type to ‘select’ and can see the dropdown but I’m uncertain on how to add the choices. Any help would be greatly appreciated. Thanks.

Can you share your code with us? Please post it with three backticks on a line, then the code, then three backticks on another line (code standing by itself). Like this example: