Change Row's Visibility on NAV 2013 Report.

i'm creating Report on NAV2013.

i dont know how to change a row's visibility by specified option value.

i create a sample report like this:

and desgined on VS2010 Like this :

i would like to change row's visibility according to "G/L Account"."Account Type"'s option Value.

i 'm looking forward waiting your reply.