If you enter find mode and use:
You'll find all records from July through December of 2013. So the trick is to get a calculation that produces the needed criteria for that type of range criteria.
Let ( [ m = Month ( Get ( CurrentDate ) ) ;
y = Year ( Get ( CurrentDate ) ) ;
m1 = m - 6 + If ( m < 6 ; 12 ) ;
y1 = y - If ( m < 6 ; 1 ) ;
m2 = m - 1 + If ( m = 1 ; 12 ) ;
y2 = y - if ( m = 1 ; 1 )
m1 & "/" & y1 & "..." & m2 & "/" & y2
PS. I'd use Set Field rather than Insert Calculated Result for this.
Thanks PhilModJunk! This was exactly the solution I needed. I modified it to work for a 12 month period as well. I appreciate you help.