I'm a super-admin for my workspace, yet I can't change calendar share settings. The only available option is "See only free/busy (hide details)" but I want to be able to let someone outside of my workspace (namely me with another google account) edit events, or at least see the details.
Please keep in mind the changes may take 24 hours to take effect.
Have you tried the following steps:
Click Save. If you configured an organizational unit or group, you might be able to either Inherit or Override a parent organizational unit, or Unset a group.
Interesting for the following screenshot is from my Google Admin Dashboard.
You are welcome!
Just to note in your last reply the screenshot didn't attach.