Overlapping scenery question

Hi all- I have a question regarding overlapping scenery airports. I installed the imaginesim KATL awhile back and it looked great. Today I see overlapping scenery (2 control towers, some taixways overlapping, etc…Usually I just go into the Content Manager, search the airport and if there is an Asobo or other publisher version, delete those and all is good. For a few, I’ve seen that when you type in the ICAO, the world updates pop up. For KATL, I get World Update II:USA and World Update X: USA. If I delete those when I have KATL in the search bar of the content manager, wont that delete the entire world update content or is it just the airport?