The second release of Gaia is revolutionising the study of star formation and young clusters. In this talk I will discuss the potential for detecting multiple populations in young clusters, and the importance of a well defined membership as a starting point. I will present as an example the results on the multiple populations of one of the closest low-mass star forming region. Using the Gaia data we found the region to be at slightly higher distance than previously thought. We confirm the presence of two populations with a peculiar spatial distribution, which might be influenced by the molecular structures present in the region. Presenting the method applied to find kinematically the multiple populations, I will discuss the effect of the correlations between parallax and proper motions on the results. I will finally present the impact of the refined distance of young stars and clusters using the Gaia data on other fields of star formation, e.g. the study of the evolution of protoplanetary disks and the disk structure.