The B (browse) line command allows you to browse a member or members to determine whether you really want to move or copy them. You can enter the B line command beside as many members as you want to. The first member that has a B line command beside it is browsed when you press Enter. When you finish browsing each member, the member list is redisplayed along with the unprocessed line commands. Press Enter again to browse the next member.
Once you have decided which members to move or copy, use the S (select) line command to select those members.