The control has a color bar showing the active color table and the associated high and low data values in the units the display is made in. As the mouse pointer is moved over the color bar, the value at a particular color is shown. Click on the color bar to start the Color Table Editor. Or click on the button that displays the name of the color table to show a popup menu that allows you to change the range, select other color tables, etc.
You can change the vertical scale of the 2D cross section view. The Auto-scale checkbox, when checked, will scale the Y-AXis of cross section to the sampled data range.
This lists all the azimuth angles in the RHI dataset. Selecting the azimuth in the list shows the corresponding RHI display