I have built a rather large process diagram and I needed to add another stage. I clicked on the + to add a stage to the right of the 2nd stage. It's way over on the right. I need to tighten up the stages, and I assumed I could go to the line that splits 2 stages and arrows would appear......that's not the case. From what I'm seeing, the stages cannot be moved left or right. 

Am I missing something or is this not possible?

Thanks in advance.