I made some errors in one of my posts and wanted to ask a question in it and add some sentences, is there anyway to edit posts?
You can edit if you do it quickly after posting. The edits have to be posted within 5 minutes, if I remember correctly. If it has been longer than that you can just add another message below to include what you left out.
I think it's 10 minutes, but I'm not certain. It is short, and that's an intentional choice as part of our security policy.