Binding a field to a widget text box?

[im_a_lama (LAMA)]

You need to plug the widget to the hud_message_device widget/template field

After you can just change the hud_message_device text

Show<public>(Agent:agent, Message:message, ?DisplayTime:float = external {}):void = external {}

If you want to use multiple field, you’d need to use the multiline trick