Hi again, you can use this FAQ from Ontology for staking:
We are also working on a staking app in O3, so you can also wait for that to come out (hopefully later this week or next week).
Also, that’s very kind of you to return the ONG. Our address is:
AWvjgmZPbeamLVtCqfBQNtZbVEAsaHrMrP
We will use it to help others again