It was super useful.
Could you bring it back? At least for ChatGPT Plus members?
It takes multiple times for the AI to give me the perfect text, I really need it, it’s why I’m paying.
Thanks
This feature is currently still available to me. Though, it does seem to disappear sporadically. When that happens, as a workaround, I click the “Edit” button for the last prompt and then “Save & submit” to regenerate.
It’s back now. ChatGPT is 100x times better with it. I also don’t know why we do not have a copy to clipboard button.
It has disappeared again. I’m wondering if they remove the button when the traffic is too high? 
That’s possible. But when this happens, you can still use the workaround with one extra click.
Workaround:
That’s an interesting idea. Are you trying to copy your input or ChatGPT’s response? What do you usually do with the copied text? PS- I’m developing a “power tool” for conversational chat interfaces like ChatGPT, so I’m curious if this is a feature that I should be considering.
I was looking for the same and after ling research, I found a video on YouTube that proved to be helpful for copying all the text at once. It covers the same topic and provides step-by-step instructions on how to do it. He explains a very quick method to copy all the generated response at once.
Here’s the link to the video: How To Copy All Text from ChatGPT IN 1 STEP (Copy Text Quickly) - YouTube
I hope you find it helpful! Let me know if you have any other questions or if there’s anything else I can help with.