In Austria it is also mandatory to register each guest for the exact number of nights. We need to be able to register the guests with the correct arrival and departure date.

This is critical for many long term stay

This is critical for many businesses using long term stay, which are now strongly targeted by Mews

In Italy it is mandatory (required by law) to properly register each guest for the exact number of nights and with the correct arrival and departure date! It is also necessary to better manage charges from "item" in reservations with guests arriving/departing on different dates - without having to use charges from "bill" that do not appear on reports (e.g. breakfasts)

We have a Feratel integration (registration) and urgently need the possibility to report additional guests to the municipality.
Therefore, an adjustment of the overnight guests should be possible from day to day.

This is also a legal requirement in Italy to report to the police on all guests staying in house. Without having the option to add companions only on specific dates, this legal requirement cannot be fulfilled.

When you make a change in a reservation when the guest is already in house, it changes it for the entire stay including the nights he has already been with us.

within the existing reservation being able to change per day the number of guests that are staying in that perticular room or apartment. We have several groups that by example rent an Apartment for 1 for the 1st night and for the 2nd night others guests will join them etc. etc.

Possibility to add a companion's partial stay.

Number of companions could differ for each night to accommodate part-time guests