Hello, @nagy.pavol
Thanks for the detailed explanation.
Firstly, allow us to add some comments regarding the combination of the Countdown and Agora functionalities.
Unfortunately, it is not possible to finish the call and start another one without reloading the page. Agora needs to generate a new token for each new call, and this can be made only by reloading the page.
The unique solution is to create a condition with page reloading and automatic connection at page onload.
As for this, please note that video for all conference participants is displayed within the shape, so you can easily place it in the way you need.
Currently, our team is checking the compatibility of the Agora with the new responsive engine. we will revert with an update to you.
Best regards,
Zeroqode Support team