The check boxes next to the trace names controls plotting of the respective trace. Trace 1 and 2 have been unchecked to make the target less confusing. Note the Cross Wind value and direction arrow in the lower left of the Target graph area. In this case there's a cross wind of 10 MPH blowing from left to right. Looking at the long slider controls you can see that the load is zeroed at 300 yards and the target is also at 300 yards.

Note the Windage Adj. control. There's a left and right arrow to add left or right windage adjustment to the simulated scope. The arrows make only fine adjustment, so right click on the control to open a menu...