The terms item and copy both continue to be used in 3.1.
Example:
Holdings View Actions -> Add -> Copies Actions -> Add -> Volumes and Copies Actions -> Edit -> Copies Actions -> Edit -> Volumes and Copies Actions -> Delete -> Copies Actions -> Delete -> Volumes and Copies
Item Status Actions -> Add -> Items Actions -> Add -> Volumes and Items Actions -> Edit -> Items Actions -> Edit -> Volumes and Items Actions -> Delete Items
The terms item and copy both continue to be used in 3.1.
Example:
Holdings View
Actions -> Add -> Copies
Actions -> Add -> Volumes and Copies
Actions -> Edit -> Copies
Actions -> Edit -> Volumes and Copies
Actions -> Delete -> Copies
Actions -> Delete -> Volumes and Copies
Item Status
Actions -> Add -> Items
Actions -> Add -> Volumes and Items
Actions -> Edit -> Items
Actions -> Edit -> Volumes and Items
Actions -> Delete Items