Presently, it is only possible to transfer owned airplanes to subsidiary / parent company. Perhaps it is good to add option to transfer lease / delivery slots to the subsidiary / parent company as long as its still inside the same holding?
This seems a common practice in real world aviation, where parent company transferred their lease / delivery slots to their subsidiary, or subsidiary returning it towards the parent company. Example is like AirAsia allocating one of their brand new airbuses to its subsidiary in Indonesia, Thailand, etc. Considering the fact that delivery slots were shared to all airlines in a single holding, this feature seems very make sense to be implemented.
This seems already suggested many times before since a decade ago, but it hasn’t implemented yet to date. I hope this feature may be implemented in the next updates.
Thank you and Best Regards.