Laying down the basis for the demonstration of a Real Time Demonstrator of Multi-Vendor Multi-Terminal HVDC with Grid Forming Capability: Coordinated action The supports all the multiple preparatory tasks, which will lead to a global agreement among stakeholders and define the detailed planning for the full-scale industrial demonstrator. These include, but are not limited to: Coordination and organization of a platform involving all stakeholders (HVDC system manufacturers, TSOs, third-party HVDC system integrators, wind turbine manufacturers, offshore wind farm developers).Compatibility of modelling tools towards interoperability.Model sharing between TSOs: legal framework.Roles and responsibilities on interoperability issues. The selected projects are expected to contribute to relevant BRIDGE[[https://www.h2020-bridge.eu/]] activities.