Thanks for your reply Casey. If you want to reply to several people, you can reply to each person separately, but what most will do is just address separate paragraphs to different people in one post. Lots of times, people will hit reply on the initial post and do that. For a general reply to everyone (and no one in particular), most will reply to the original post. If you want, you could say, "This is to no one in particular."
If one person has made several posts and you want to reply to one in particular, you can go to that post and click on "quote". A dialogue box will come up with the post quoted and space below for you to reply. If you want to reply to one statement in particular, click on "quote", then delete everything except the portion you want to keep and reply to.
Welcome to the forum.