Messaging system allows communication between users. 

This communication can be connected to an object or a model.

If you want to send a message from the model, right click on the canvas area of the model and choose New message.

If you want to send a message from an object, right click on the object you want to sent a message from and choose New message.

To show all messages related to a specific model, click the Show messages for model button which is located on Toolbar.

If there are no related messages to a specific model, this option will be grayed out.

You can filter your messages by subject, content or model name. 

You can also sort any column in Inbox, Sent or Archive tab.