Can anyone explain why this isn't possible? Or maybe it is and I haven't figured out the secret yet? Many of my frustrations in organizing max patches come from long object boxes that would look and fit better if they were resized to multiple lines. You'd think simply resizing them and letting line-wrap do its thing would help, but as soon as you edit an object it snaps back to a long single line. (I've finally submitted a bug report on this issue.)
Being able to organize an object a little better such as placing attributes on separate lines would make many items a lot easier to read and edit. You can type a carriage return when editing an object ([Cmd]+[Return],) but once you enter the object all line breaks are removed and it snaps back to a single line.