You can configure BGP4 unicast routes from the address-family IPv4 unicast configuration level.
device(config)# router bgp device(config-bgp-router)# address-family ipv4 unicast device(config-bgp-ipv4u)#

Note
The commands that are available from the address-family IPv4 unicast configuration level are also available from the address-family IPv6 unicast configuration level. Each configuration level allows you to access commands that apply only to that particular address family.
device(config-bgp-router)# address-family ipv4 unicast
 
device(config-bgp-ipv4u)# ?
Possible completions:
  aggregate-address               Configure BGP aggregate entries
  always-propagate                Allow readvertisement of best BGP routes not
                                  in IP Forwarding table
  bgp-redistribute-internal       Allow redistribution of iBGP routes into IGPs
  client-to-client-reflection     Configure client to client route reflection
  dampening                       Enable route-flap dampening
  default-information-originate   Originate Default Information
  default-metric                  Set metric of redistributed routes
  graceful-restart                Enables the BGP graceful restart capability
  maximum-paths                   Forward packets over multiple paths
  multipath                       Enable multipath for ibgp or ebgp neighbors
                                  only
  neighbor                        Specify a neighbor router
  network                         Specify a network to announce via BGP
  next-hop-enable-default         Enable default route for BGP next-hop lookup
  next-hop-mpls                   Changes for IPoMPLS route download, pkt path.
  next-hop-recursion              Perform next-hop recursive lookup for BGP
                                  route
  redistribute                    Redistribute information from another
                                  routing protocol
  rib-route-limit                 Limit BGP rib count in routing table
  static-network                  Special network that do not depends on IGP
                                  and always treat as best route in BGP
  table-map                       Map external entry attributes into routing
                                  table
  update-time                     Configure igp route update interval