No. If you have more than one Standard Chartered / MANHATTAN credit cards, you can only use one of them to apply for AAVS. However, each Octopus Holder can apply for a maximum of 3 AAVS for supplementary credit cardholders of the same credit card.
Application of AAVS for supplementary credit card holders is only applicable if the principal credit card holder has already enrolled for or is applying for AAVS at the same time.