Tap the Hamburger icon > Events > Events & Meet Entries.

Tap EDIT.

Select desired event(s) to hide.

Tap HIDE at the bottom.

Tap Yes to confirm.

Tap DONE.

The event will show HIDDEN to its right, and only admins can see it.

Tap the Hamburger icon > Events > Events & Meet Entries.

Tap EDIT.

Select desired event(s) to unhide.

Tap PUBLISH at the bottom.

Tap Yes to confirm.

Tap DONE.

The event will no longer show HIDDEN to its right, and all people will be able to see it.