I have a line chart and i'm applying filter to the series (lines).  The lines represent the Itemtypes and the filter is to show data only for Sand,Resin, Glass- A, Glass -B etc. But I want to show Glass- A and Glass - B as a single line. how to achieve this?
			
			
			
				try this create new query calculation as follows for item types
if( [item types] in('Glass A','Glass  B' )) then
('Glass A'+' and '+'Glass B')
else
([item types] )
It wil automatically show u the data summarized for glass1 and glass2.
Now to filter this data u also have to put same calculation in ur filter query data item , so that it wil show the option 'Glass A and Glass B' 
			
			
			
				Thanks for your answer !