Expand calendar to view full calendar

[abhiburk]

Is there any option to expand the hotrizontal calendar to view as full calendar ?

[peacechen]

This would be a useful feature to have. Would you like to submit a PR?

It will take a good amount of work to add this. There are full calendar libraries that contain more code than this one.
https://github.com/stephy/CalendarPicker

One option could be to use a library like that one and switch views on expansion.