Its extremely useful having the option to define points as required or optional.

Is there also an "either/or" option? I seem to remember a short discussion about this in a WG meeting.

There is an "or" type. However, its not really flushed out how it would work with graph validation (equip points). I have not written any tests for it at all yet.

I think or between two types is pretty straight forward.

But an or between groups of points would probably be more sophisticated.

I'm sure its not straightforward to create. I would be happy to help figure it out or do some testing if needed!

A common scenario we run into is vav temp setpoints. We either need a single effective sp, OR both effective htg/clg sps.

In a spec the following syntax would make intuitive sense:

MyVav: G36Vav {
  points: {
    ZoneTempSp | ZoneTempHtgSp&ZoneTempClgSp
  }
}

Even if we had to create a separate spec that somehow resolved into that "or" statement that would be great. Not sure if that would be easier than introducing the new syntax using those operators.