Without vCenter there really is only one way to do this - You can manually copy them to the new location - the steps to follow are -
1) Power down the VM
2) Remove the VM form inventory
3) Using the data store browser in the vSphere client copy and past the VM directory to the new datastore
4) Re-add the VM to the invensotry - using the datastore browser find the VMX file in the new location right click and add to inventory
5) edit the setting of the vm - you are going to have to relink the virtual disks in their new locations
6) Power on the VM
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