I have just installed this and it is working fine.

Is there a way to update the calendar with the current bookings in Jomres?

We have just one property using the system. Is it possible to have a different color for each room?

No, only the bookings made after the plugin was installed will be added.



I don`t think this is possible, because bookings can be made for multiple rooms at the same time (and the booking is added once to the calendar, not once for each room), so in this case choosing the right color is impossible.