Open the menu
    ```html

    Forum: Add Message

    Displays the form that allows the end user to add a new message to an existing forum topic.

    Screens

    Add Message
    • Subject (string, required field, maximum size: 255) : Subject of the message, corresponds to a title for the message.
    • Message (html, required field) : Reply to a topic or message.
    • Attach Files

    Permissions

    • Post Message: Allows adding topics and messages in forums, and editing or deleting one's own messages or topics.

    Actions

    • Save message : Saves the entered content, adding a new message to a topic.
    ```