Mojave killed Preferences Pane (and so calendar integration)

[warek]

Mojave killed Preferences Pane (and so calendar integration).

Any idea how to fix it yourself? Is it possible to set the calendar somewhere in a hidden preference file?

This is still the on only app with such feature and I love it. Ugol's version with calendar integration still works on my old mac, but using it on my new doesn't work because I can't set the calendar.

The one for called "Timer" out there has the same problem.