Editing an already-answered question in a way that significantly expands it is not good practice on Stack Exchange sites.

We're not a forum, but instead a Q&A site, meaning you want to post questions that are as narrowly-scoped as possible. Asking new questions as necessary is of course acceptable, and you can link your original question to provide context.

If you have a minor clarifying question you wish to ask one of the answerers, a comment below their answer is acceptable. But avoid addressing new material or engaging in lengthy conversation in comments.

Editing an already-answered question in a way that significantly expands it is not good practice on Stack Exchange sites.

We're not a forum, but instead a Q&A site, meaning you want to post questions that are as narrowly-scoped as possible. Unlike a forum, once a question has received an answer, the post's scope needs to remain largely unchanged. Otherwise the answers may be invalidated by the "new" version of the question. Instead, make new question posts as necessary and link to your original question to provide context.

If you have a minor clarifying question you wish to ask one of the answerers, a comment below their answer is acceptable. But avoid addressing new material or engaging in lengthy conversation in comments.