Yes, I would like to see a configurable "age" for the previous messages that a user sees when they come into chat.
For example, if I have the previous message count set to 20, I would like to also be able to set a timelimit to 5 minutes, so that it only shows the portion of the previous 20 posts that were made in the last 5 minutes.
This is useful if someone accidentally closes chat and you want them to be able to see what was said recently so they don't miss anything, but you don't want old conversations hanging around for days when the chat room isn't being used...
Thanks
Jason