In the Admin Panel, when I go to General, then Messages and emails, then under the Messages options, I activated the Activate draft messages functionality, but not entirely sure how it works.

Is it automatic? If so, where does it save?

Is there any way for there to be a button which it can also be optional to save a draft at that moment of choice when clicking it?

Any advice on this would be greatly appreciated.

Is this a suggestion or a support question?

It's a question on how to get it to work.

If they don't already have that option, then it would be a suggestion to have that option there, in the same way blogspot does it. On Blogspot, it saves a draft of the latest version of what you just posted, every few moments, but also gives you the option to click save as well.

BUT, if they already have this option in some way, I would like to know how to get it to work. Be it via activating the option via the Admin Panel, and/or applying the option on the forum when and where I would need to use it.

I mean, it does say it has the option there for Messages and emails. But, I'm not sure if that same option can also apply for both making or replying to other Topics.