Oh, I see what you saying. It makes so much more sense, too.

Did I understand you correctly - "to do" items just carry over from day to day until I check them as completed or delete them?

Yes, that's right.
You can create:
* a "generic" task without start/end date, e.g.: "learn how to write Haiku"
* a "need to do something, but after..." task with start and without end date, e.g.: "buy the new CD from an artist, which is released the next Wednesday"
* a "need to do something, but before..." task without start and with end date, e.g.: "finish the project before the Friday to deliver it to the boss"
* a "between times" with both dates, e.g.: "dinner today between 8 PM and 9 PM"

Thank you so very much. Your explanations made all the difference. For some reason I'm no good with manuals and help files (gotta be the language & too many terms that I don't know), but if someone gives me a couple of tips to get me started, easy after that.

At one point I have found in the menu something like "click/double click on the day with left button to start and event", "click/double click on the day with right button to start a task" (it's a blank field, one has to set it up). Now I can't find it again. Could you please tell me where it is?

Right click on the Shadow4 calendar window in any day and click on "new task". (you can also double left click to create a new event without selecting it on the menu). Or you can right click on the Rainlendar2's tray/taskbar icon and the same menu will appear.

If the date already has an event or task, keep pressing the Shift key while right click with the mouse on the calendar.

With the event list, clicking on an event will bring a similar menu with new/edit/remove event. The same if you have enabled the task list (with the additional options to set it as "needs action", "in progress", "cancelled" or "completed").

@falzman: I thinks, you are looking for this :

Yes. That's exactly what I was looking for. Appreciate it!

Is there a similar option somewhere that allows to set right/left doubleclicking for clicking on the days in the calendar the same way as above?

What format does alarm support? Are there any default files in Rainlendar?

In order to save all all my setting (in case I have to reinstall the program on different computer), is it enough to just copy the skin file and save it with the distributive?