Google Anlytics Plugin - Selection Error / (Union Function)

I have an aggregate table made up with google analytics from our different sites.

The order in which the items are selected determines what the table will look like, even though I have selected the same dimensions and measures from each GA site.

When selecting the dimensions and measures from Google Anlytics it puts them in order clicked.  

When I then try and Union them in a custom table it puts the wrong fields in each other, so it does not seem to go of Name rather where the columns is situated in the table.  There does not seem to be a way to move the columns about and I would expect the Union to go of Column name rather than physically where it sits in the table.