Say you have two exported value nodes node1 and node2.
At the children panel convert the node1 to Reference convert type. Unfortunately it is not possible to expand the Convert types at the children panel. In one layer, connect one same type parameter to the node1. You can expand it now and see the Link subparameter. Now just Connect the Link subparameter to node2.
I had to read that three times for it to sink in. I got it! But in doing it I realized I didn't know how to properly link a value. I can't really explain what I was doing, but I was getting confusing results. I've relinked the emitter to a star layer. That gives ducks for angle, origin, and two linear items(currently X and Y size). I'm getting it figured out.
My biggest question now is, can an item within an inline canvas, calculate its origin position within the global canvas? That would at least partially solve the the question from earlier about inline particles free floating on the global canvas. Since the inline origin could be translated to a global value for a particle setup within the global canvas.
Thanks for your input. No need to respond unless you can answer that "biggest" question. I'll just keep stirring around in it.
 Regarding finding an items position in global coordinates, for simple origins I understand that I could use add to find origins within an inline canvas, but as soon as you mix in a rotate it gets confused.