Enable Hot Corner in Ubuntu 18.04

Hot Corner is a Gnome Feature that allows you to see all open windows (same as clicking Super key or clicking on Activites) by moving mouse to top left corner.

Ubuntu 18.04 hot corner

To see if hot corner is enabled or disabled, run

To enable hot corner, run

EDIT: After using enable hot corner for a day, i found my mouse reach this corner accidetly multiple times. Seeing activites page unexpectedly when you want someting else is confusing. For Ubuntu, it is better to keep it disabled.

To disable, run

See Ubuntu 18.04