CGCalendar module - List parameter problem

[Unicum]

In the following website i've displayed a great CGCalendar that almost does the trick:

www.frankendaelschool.nl/school/schoolkalender/

The (current)month displayed here is correct. It shows a common calendar at the top with directly below a summary of events according to that month.

Problem: When clicking on "next month" the summary list doesn't show. (obviously)
I've entered the following tag in the content of the page:

{cms_module module="CGCalendar" display="calendar"}
{cms_module module="CGCalendar" display="list"}

I've looked for a parameter that can be added to the display="list", such as: month="next", or something like that. But there's no parameter described. I tried inline="1" but that generates the summary list of the current month and not the month in front of me.

Anyone?!

Thanks in advance.

Richard