If it was something is simple as just automatically seeing the contents of the textarea, it could be done with custom JS in the ACP.
How to open a link in a new window（markdown ）
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https://community.nodebb.org/topic/180/who-is-using-nodebb
How to open a link in a new window？
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In the markdown settings, you can change the behaviour to always open new links in a new window/tab.
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@julian Originally here, thanks
