You can configure a peer group on a tenant BGP.
efa tenant service bgp peer-group create --name <peer-group-name> --tenant <tenant-name>
      --description <description>
      --pg-name <border-leaf-ip:pg-name> 
      --pg-asn <border-leaf-ip:pg-name,remote-asn>
      --pg-bfd <border-leaf-ip:pg-name,bfd-enable(true/false),interval,min-rx,multiplier>
      --pg-next-hop-self <border-leaf-ip:pg-name,next-hop-self(true/false/always)>
      --pg-update-source-ip <border-leaf-ip:pg-name,update-source-ip>
      --pg-ipv6-uc-nbr-activate <device-ip,pg-name:true/false>
                    The following example creates a BGP peer group on tenant BGP:
efa tenant service bgp peer-group create –name ten1BgpPG1 --tenant tenant1
    --pg-name BL1-IP:pg1 --pg-asn BL1-IP:pg1,6000                       
    --pg-bfd BL1-IP:pg1,true,100,200,5
    --pg-next-hop-self BL1-IP:pg1,true
    --pg-update-source-ip BL1-IP:pg1,10.20.30.40
    --pg-ipv6-uc-nbr-activate 10.20.246.29,v1:true
                efa tenant service bgp peer-group update --name <peer-group-name> --tenant <tenant-name>
    --operation <peer-group-add|peer-group-delete|peer-group-desc-update> --description <description>
    --pg-name <border-leaf-ip:pg-name> --pg-asn <border-leaf-ip:pg-name,remote-asn>
    --pg-bfd <border-leaf-ip:pg-name,bfd-enable(true/false),interval,min-rx,multiplier>
    --pg-next-hop-self <border-leaf-ip:pg-name,next-hop-self(true/false/always)>
    --pg-update-source-ip <border-leaf-ip:pg-name,update-source-ip>
    --pg-ipv6-uc-nbr-activate 10.20.246.29,v1:true
                    The following example updates a BGP peer group on tenant BGP:
efa tenant service bgp peer-group update --name ten1BgpPG1 --tenant tenant1
     --operation peer-group-add                       
     --pg-name BL1-IP:pg2 –pg-asn BL1-IP:pg2,7000                       
     --pg-bfd BL1-IP:pg2,true,200,300,6                      
     --pg-next-hop-self BL1-IP:pg2,true 
     --pg-update-source-ip BL1-IP:pg2,10.20.30.41
     --pg-ipv6-uc-nbr-activate 10.20.246.29,v1:true