...
This function requires an API license
Introduced in VDG Sense version 2.7.2
The customMessage OSM (OnScreenMessage) signal with the supplied value parameter is used to link a status message to a camera. This status message can be showed in a custom OSD OnScreenMenu which is described here.
Special care must be taken when including xml specific characters. These are ‘&’, ‘<' en '>‘. The ampersand (‘&’) character can not be sent by this command because it will be part of the URL. See next paragraph.
...