You can name one Agent or more than one. You can require that they act together (“jointly”) or you can have them act separately as well as together (“severally and jointly”). If you include this phrase, either of your Agents will be able to act alone on your behalf. If one is away or sick, for example, the other would still be able to give instructions on your behalf. If you do not indicate that they can act severally, they will have to do everything together.
If you designate more than one, you should include some form of disagreement resolution. If your Personal Directive does not provide instructions about how to resolve disagreements, the Personal Directives Act states that the decision of the majority of Agents must be followed. This is problematic if you have only two Agents. Agents may also apply to a court for advice and direction.
Also, be aware that naming multiple Agents can make things more complicated if difficult decisions need to be made quickly, and, even though you have named two, you should still take the precaution of an “alternate” Agent, in case neither of them can act for you.