Of course, you can create port groups from the CLI of the ESXi hypervisor using the esxcli command:

1. Connect to the ESXi server using SSH
2. Issue the esxcli network vswitch standard port group add command:

esxcli network vswitch standard portgroup add --portgroup-name=PGname --vswitch-name=vSwitch1

3. To specify the VLAN ID of the port group, you can use the set command:

esxcli network vswitch standard portgroup set -p PGname --vlan-id 1234

4. Finally, override the configuration of security, teaming, and shaping the policy of the virtual switch:

esxcli network vswitch standard port group policy set