Unable to see arrow during slope element construction

Hello, 

I'm just getting started with Kubla Cubed and have a question regarding the slope element. After I deliniate a slope element outline, I'm unable to see any of the controls that are used to define the slope incline and elevation.  This includes the 3 Points, 3 Points & Offset, Arrow and Arrow & Offset options. For examples, when I select Arrow, the arrow control doesn't appear on top of my plan. 

Any ideas when these controls aren't showing up for me?