Currently it is highly time consuming process of copying a 100gb collection from one project to another project. There is no faster and proper way of copying the data. This feature is highly needed. Because each environment resides in different projects. If someone want to copy only handfull of collections from one project to another(dev to prod and vice versa) then its a nightmare for doing this kind of job. Tried mongomirror and mongodump feature but those are not quite impressive.