TestLeft - StripMainMenu

The TestLeft code generator is showing a property called StripMainMenu, which I need to access.

 

When I plug this into Visual Studio, I get a message that the property doesn't exist.

 

I'm using the 4.1 nuget package and .NET 4.7 Framework

 

My imports are:

using SmartBear.TestLeft.Options;
using SmartBear.TestLeft;
using SmartBear.TestLeft.TestObjects;
using SmartBear.TestLeft.TestObjects.WinForms;