MIDAS allows you to leave messages to other MIDAS users which they will see whenever they login, or check their messages via the icon in the main toolbar.
Leaving a message for other MIDAS users
Select the icon in the main toolbar.
Click/tap the left side of "My Messages" header to display a box into which you can enter your message and choose which user (or users) it is for. You can also set an expiry date & time for your message, so if the user doesn't log in again until after this time, the message will be automatically removed.
Select "Leave Message" to leave your message for the selected user(s).