These docs are for an old release.
Info on upgrading to v4
selectable
Allows a user to highlight multiple days or timeslots by clicking and dragging.
Boolean, default: false
To let the user make selections by clicking and dragging, this option must be set to true. See a demo.
The select and unselect callbacks will be useful for monitoring when selections are made and cleared.
To learn the ways in which selections can be cleared, read the docs for the unselect callback.