Is there a guide for positioning Panels/Shapes?

…I find positioning of objects very confusing. Is there a guide for positioning somewhere?

If you haven’t already read the Introduction pages, I highly recommend it. For this question, I suggest:
http://gojs.net/latest/intro/panels.html
http://gojs.net/latest/intro/tablePanels.html
http://gojs.net/latest/intro/sizing.html
http://gojs.net/latest/intro/nodes.html

I must be blind to let that go unnoticed. Yes, those help quite a lot :D