I'm in a time cruch with a problem...

I have a combination chart with data from Sun thru Sat (7 days). My manager wants to display only the weekday data (M,T,W,Th,F) and remove the weekend data (Sat,Sun). However, I also need this data to be included in other charts I need. I was thinking in years past, that I was able to remove specific data from the chart directly without having to alter or change the spreadsheet data? Any thoughts or comments?