Always talking about the Dolibarr Agenda (calendar):
2nd) Drag and drop, to move a date to another day. This will facilitate to change the date of an event, the start/end of a contract, ... tough?
3rd) I know a warning advice is abailable in the working route at the start. But I think it not appears in the Agenda like a finish event. If the init of this events are automaticaly inserted, why not the end?
Sorry if I'm trying to reinvent the wheel. I'm a beginer still.