It is very easy to send a chart to a groupbox inadvertently with the dropdown menu at the bottom of the message screen. I have mistakenly sent charts to a wrong mailbox before. I have been trying to get into the groupboxes and haven't found a way to do it. It would be nice to get rid of those boxes so that charts didn't end up there by accident. I'm not sure how to get into that mailbox but it must be somewhere in administrative options.
