I often use the "Notes" tab for some important information or reminders. It would be nice if a small window for the particular SafeInCloud entry could popup when the login data is put into the respective fields.
This could also be combined with the "Select an entry" popup when multiple credentials exist. When selecting the proper entry the associated information text is shown.
Or even better:
Make the Notes tab a list and have a checkbox for each list entry to mark it for this popup info window.