From ChangeLog: https://www.lalescu.ro/liviu/fet/news.html
* Added a new feature to create easier overlapping groups/years, from the
subgroups/groups dialogs (suggested by samantha.goddard's file).
* Added the possibility of executing an external command after the generation
(suggested by Zsolt Udvari and other users). The implementation of this feature
was inspired by the Claws Mail software.
* Added a new example file from Hong Kong, by Marcus.
While here, reorder out of place variables.
PR: 248724
Submitted by: uzsolt@uzsolt.hu (maintainer)
a78af44bdd