sometimes I want to save a topic and come back to it, can I do that on here?
Click on the "watch this topic for replies" at the bottom left of the topic and then you can go into yoru "watched topics" list to find it.
Or you can save it as a "favorite" .... at the top of your screen, select "Favorites" (in the line that has File Edit View Favorites Tools Help), then click "add to favorites". You can create a folder to put these in if you think you might have a lot of them.
Mine screen doesn't have favorites across the top. Between view and edit I have bookmarks. But I think they serve the same function.