Currently, i'm having over 850+ link and about 50+ total of nested collection, a lot of them had at least 3-4 stacked level. When i'm doing some research, then bookmarking stuff and when i need to re-organize them it's just feel hard to move some of them into a proper collection. So i hope if you guys can make an option to view the nested-collection into a new window (side-by-side), with an option like that. For some case like having so much of nested collection or stacked level of nested collection, i'm sure we can easily find & match which collection we need to go into.