How to click on a disqus comment element ?

[Robejon]

Hi,
I have failed in attempting to post a comment to a disqus comment element, as you can see in this page.
https://www.spoilertv.com/2017/12/kevin-probably-saves-world-episode-112.html

I just need to enter a variable in disqus comment box " Join the discussion "

Can anyone help ?
Thanks

 

[VladZen]

Use action designer - http://zennolab.com/wiki/ru:action_constructor
Find text field element and use Sat>Value action.