Deselct "Migrate powered on virtual machine" and "Query vMotion". Click "SAVE".
Grant "Administrator-vMotion-disabled" role to users.
Open VM's page, "Permission" tab.
If the administrator user already has permission of this VM, click "EDIT" and change its permission from default "Administrator" to "Administrator-vMotion-disabled".
If it doesn't have a permission of this VM, click "ADD" and grant "Administrator-vMotion-disabled" role to it.
Verify configuration takes effect.
Log in as a configured user.
When submitting a vMotion task, all types of vMotion is greyed out now.