#1 - June 18, 2016, 2:35 a.m.
The characters from your retail account should show up here; selecting one of them and clicking "Copy" will copy over a version of that character to the Beta Environment. If your Character List doesn't copy, make sure you have the proper region select and click "Copy Account Data". Since this system requires gathering data from your live characters, it's possible that characters might not display if they have not been accessed for some time.
Toys and Mounts may not be copied over when you move your characters. We're aware of this issue but don't have an ETA on fixing it.
Over the course of testing it may be necessary to disable Character Copy with little to no warning; we'll try to provide updates but please be aware the system will not always be online.