Add Cloud-based calender feature to WD Cloud

I would like to set up my own private calander on my WD Cloud Drive, not using google or anything more.

I came across some software such as ownCloud or baikal, which is a bit like dropbox or the WD Cloud App, plus a calender functionality.

Access could be enabled via WD Cloud App plus Desktop-Access when directly connected to the WD Cloud.

Any feature like is to come soon, or appearing worth developing?