Is it possible to archive all the messages one has in the Inbox folder and not just 30 or 50, which is the current limit?

Are you wishing to save messages to your computer in the hopes of saving storage space in your PM box or you just want an actual archive easily accessible on your computer without going to the message boards? If it is for the former, you can create an additional folder and move certain PM's into that folder. I do this for Reported Posts, as it is easier to access said PM's. Otherwise, if you truly want to archive posts, I'm pretty sure the limit you are referring to is per process. Meaning, each time you wish to archive a post. I can check our system to see if we can alter the limit, but I have not come across that setting in the years I've handling this message board.

Well, I wanted the latter. However, until you find the way to increase the number of PMs to all (), maybe that new folder thing can help.