Radio Group and App Modal for chat bot

API and Webhooks Chat
1

I am creating a bot for a team chat with a small survey. Questions with one answer option. RadioGroup is ideal for my purposes.
And I would like to display the results in a modal window.

  1. How can I get selected value of RadioGroup or SwitchGroup?
    ‘interactive_message_select’ event isn`t working…
    And other events also don’t have a selected element in payload.originals…

2)Can I add AppModal with text message?
In the example on

there is only a dialogue with a link…

Thanks in advance!