As a user, I want the selection dialog used for link, copy and move to be faster at medium scale. Currently the dialog takes a very long time to list elements of the tree if the project is even of a medium size defined as 50,000 objects.  While mitigated by delayed instantiation by hierarchical level, it is too slow to be acceptable to the user.

As a user, when linking, I would like the destination trees to load within 2 seconds. Even in a medium sized space such as BeaubienH, it can take minutes to load the destination trees for a link operation (copy and move likely are the same).

Also the notification message is the lower RHS of the screen says "copy" when it should say "link".