sendMessage
function sendMessage(event, data)
server side use
Be careful of invoking this from server side code immediately at startup; messages can only be sent to connected assets, and at the time the bundles load the front end has not initialized yet.
Send a named event message to all assets in the current bundle; data can be
any desired value.
The message will be transmitted to all graphics, panels and extension
listeners in the current bundle, except for the sender.
reserved names
Event names that start with __sys are reserved by Omphalos for system events;
you should not use them in your own events.