czml load file, then czml stream?

1. A concise explanation of the problem you’re experiencing.

No problem yet, I just want to make sure this will work before I start tackling it.

2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

What I’d like to do is have the client load a set of open “sites” at when they first access the url. Then provide updates via Server Side Events streamed to those same sites. I think the best way to do this is to generate a czml when the client access the url and then load that via CzmlDataSource.load(). Then later point a CzmlDataSource.process to a url which will provide server side event czml data. So in effect this will load the current state of open sites and keep updating it. Does this sound like the best way to do this? Is there a way to provide a czml packet that closes the site? Maybe just provide an interval end time which has already passed?

Thanks in advance.

4. The Cesium version you’re using, your operating system and browser.