PJ.05-W2 Digital technologies for Tower - SESAR-IR-VLD-WAVE2-05-2019 deals with two Solutions: Solution 35: "Multiple Remote Tower and Remote Tower centre" and with solution 97: "HMI Interaction modes for Airport Tower". 14 SESAR members (in sum 31 legal beneficiaries) showed interest in these solutions. For solution 35 cost-effectiveness is the principal key performance area (KPA). It proposes the development of a remotely provided aerodrome air traffic service by a "multiple" and/or "center" setting. Those settings help to combine ATS services from various aerodromes in a centralized control room independent on airport location in order to make use of the valuable resource ATS provider more efficiently. In the end, the passengers will benefit from by a better passenger comfort in terms of shorter travel times and better point to point connections. PJ05 will bring the multiple/center concept to such a matured level ready for industrialization. PJ05-Solution 97 aims to validate, in different Airport operating environments, innovative HMI modes and associated technologies. Those solutions are expected to positively contribute to the Safety and HP KPAs with reduced Controllers’ head down time and workload, as well as increased situation awareness and controllers' productivity. The PJ05-W2 DTT attracted plenty of European organisations to participate: ANSPs, industries, R&D and airport stakeholder intends to provide their specific competences to broaden the operational needs and technological expertises. The PJ05 variety of partners and validation activities will help to adequately reflect the variety of operational needs and technical solutions which in the end of the project will consolidate into a harmonized and widely accepted SESAR2020 PJ05 solution. The complete work is structured in a very collaborative way throughout all work packages and will ensure the transfer of knowledge and know-how between all participants and external to SESAR2020 projects.