The component surface representation can be changed from the default Wireframe to an opaque, tessellated surface to a shaded or textured surface. You can change the surface representation of your model components individually or as a group.
Propellers allow you to combine axial and planar symmetry to create reflected axial arrangements in your model. For example, you can use a Prop component and planar symmetry to make counter-rotating propellers on either side of your aircraft.
There are several ways to establish component symmetry in OpenVSP. This tutorial introduces the different types of symmetry and how to set and adjust them.