How do I change a root component's mobility back to Movable?

[anonymous_user_e98b9c22]

I apologize, I forgot that my Step 1 above is not exactly correct. It was actually a new class derived from an empty pawn. The constructor of the new class has the following line:

RootComponent = CreateDefaultSubobject(TEXT(“RootComponent”));

This root component has greyed-out properties, but I don’t understand why.