The Train-the-Trainer programme is designed to equip educators with the practical skills and confidence needed to deliver high-quality teaching within the EU-iNSPIRE Digital Campus. It provides a structured introduction to the platform, delivery methods, assessment practices, and hands-on learning environments, ensuring consistency, transparency, and academic quality across the programme. The course begins with a guided overview of the EU-iNSPIRE LMS, covering login procedures, navigation, content upload, learner communication, and basic monitoring tools. Trainers gain a clear understanding of how to operate within the Digital Campus and deliver content in an interoperable and structured way. Building on this foundation, the programme explores effective online and hybrid teaching practices. Trainers are introduced to practical engagement techniques, common challenges in digital delivery, and strategies to enhance learner participation and learning outcomes. For those delivering lab-based or practice-oriented modules, dedicated guidance is provided on accessing and managing labs and cyber ranges from a trainer perspective. This includes learner redirection, platform integration, and essential troubleshooting steps to ensure smooth, practice-focused sessions. Assessment and feedback are addressed in a focused module covering quizzes, assignments, lab results, evidence collection, and key principles of academic integrity. The aim is to promote transparency, consistency, and quality assurance in evaluation processes. An optional micro-teaching session allows new or first-time trainers to deliver a short teaching or lab demonstration, receiving structured feedback from peers or coordinators. This element supports teaching validation and continuous professional development. Overall, the programme ensures that all trainers are prepared to deliver high-quality, digitally supported, and practice-oriented learning experiences aligned with EU-iNSPIRE standards.