Operational scenarios such as Tip&Cue are gaining significant attention in modern technology, aiming to improve process efficiency and continue advancing technological evolution. In this context, High- Altitude Pseudo-Satellites (HAPS) have emerged, offering a transformative approach to traditional satellite station-keeping by providing platforms closer to Earth with reduced deployment costs. This thesis focuses on the development and implementation of a multi-platform cross-cueing system that leverages the capabilities of both satellite and HAPS platforms. The system integrates the various actors within the cross-cueing scenario, defining their roles and corresponding functions, as well as the necessary software implementations. The work is conducted within the framework of the Cross-Flight project led by Stratobotic, which proposes automatic coordination between satellite platforms, stratospheric platforms, or a combination of both.