Customize the ‘Anti-Bot Challenge’ page

When we try to paste our code into the custom HTML
on the anti-bot challenge, we see an issue like the one shown in the
attached screenshot. Your support team told me that it's not possible right now.
So, can you add this functionality as a feature?
The screenshot can be viewed at this link -https://drive.google.com/file/d/1Ledb4D6uSpjrqitjjnlipdhizt9NET8a/view?usp=sharing

Thank you for taking the time to post it here.
I’ve just added this request to our internal review system, and it is currently under review. I’ll update you directly in this thread once there are any further progress.