Using JMP 17, I created a simple Graph Builder Chart that includes a Legend
 

I then selected the Selection Tool

and then clicked on the Graph Builder Outline Box to select the graph

I did a CNTL/C to copy the selected area to the paste buffer.
Moving to PowerPoint, I then simply pasted the graphic into a blank page

The Chart and Legend are copied to the ppt
I also saved the chart by going to 
     File=>Save As
and saved the window as a .ppt and the save also copied the legend along with the graph.
					
				
			
			
				
	Jim