Trying install Latest version scenery for KORD V4.0 to V4.1 in X-P12

[Dougg]

Hello, please help me with steps to install latest scenery version windows, X-Plane 12,  Nimbus KORD V4.0 XP12 is  (installed)

I want to install Latest version KORD V4.1 XP12.

 

I do not get the message >"Agree to Auto-Replace" or "Overwrite” when I drop it into Custom Scenery where V4.0 is, I also tried to drop it into V4.0 folder but both ways I never get the above message. 

I am new to this, hoping you can hook me up with proper way to do this update.

Thanks, Doug