Unable to unpartition main drive
Hello,
I am trying to unpartition my drive and return all the storage to my main drive but am unable to do so. I followed the steps from other support threads on this subject but get stuck at the screen in the attached screenshot screenshot below. When I click 'partition' here, which should accomplish my goal, nothing happens. There is no 'finished' button to click on after that which I see in other threads. Any help here would be greatly appreciated as I don't have enough storage to download the new updates which has become infuriating as GoogleChrome keeps crashing on me with my old version.
Thanks,
Kyle
MacBook Air 13″, macOS 10.15