How to "Stop sharing your data"?

I tried the menu choice to start sharing my data and made a few selections to see how it works. However, after starting to share my data I was not able to find the user interface to make any modifications in the selections I made - or to stop sharing my data altogether.

Do I just have a bad eyesight or does the user interface really disappear after one starts sharing his/her data?

No, it’s not a disappearing UI. Just click on “Edit Location” on the action menu of your dashboard. Then there is a 2nd tab called sharing:

Then:

Ahh… there it is!

I enabled the data sharing using the “main menu” element (in the left panel) and that UI element seems to have disappeared after enabling data sharing. Now I understand that it seemed to be only a shortcut to this Data Sharing Tab.

Thank you for your quick reply!