You can edit settings after tweeting
Twitter is giving you the ability to change who can reply to tweets after you post them, the company announced Tuesday. Thanks to a feature that was widely rolled out in August, you can already limit who replied to your Tweets, but you had to set that preference when composing a Tweet — with this update, you can later can respond, which can be a helpful way of reducing harassment. The feature will be available globally on iOS, Android and the web.
To change who can reply, click or tap the three-dot menu on a Tweet and look for options in the menu that appears. You can make it so that everyone can reply, only people you follow can reply, or only people you’ve mentioned in your tweets can reply.
— Twitter Safety (@TwitterSafety) 13 July 2021
The feature is the latest example of how Twitter is working to give users more control over who can interact with the things they post. On July 1, Twitter showed some ideas it’s considering that would give users more control, such as the ability to tweet to “trusted friends” and tweets from different “aspects” of your online persona. A way of doing, such as your own work and your joke-y self.