Details panel missing for static mesh component in blueprint

Hi , thanks for quick response!

1>…/…/…/…/…/…/…/…/…/GamePlayPawn.h(20): error : In GamePlayPawn: TSubobjectPtr: Subobject properties can’t be editable (use VisibleAnywhere or BlueprintReadOnly instead).

Unfortunately, it seems this isn’t allowed. above message is error message I receive when I re-compile project with that change.