Not sure if theirs any proper feature request area so here goes one thing I do miss from Gnome is the ability to copy the date & time from the desktop clock, along with displaying a calender when clicked on - not a major feature just handy to have
I can't help you with the copy date and time thing but...
Remove you default Clock and chose the Orageclock instead, and configure it as you like it.
Orageclock in among the other panel plugins. Orageclock can be named something else in English. ;-:
Thanks, will take a look