To use if function in dashboard

Hi All

              I am new to Sap Dashboard and i have made  a Dashboard which contains 6 graphs  for different labels using 3 different filters/selectors.Can anyone help me in using a if function to ensure i use a single selector and the 6 graphs should be displayed according to the label being selected.

   Kindly let me know the same in a step by step procedure.

Thanks in Advance.