Is it possible to disable pass-through on Multplus-II

I will use the Muliplus-II at home. I want to connect the AC-In (shore power) only to charge the battery. I don’t want to have the AC in powering the load connected on the AC-out. So only to charge the battery. Is there a setting to control that ?

I will use transfer switch at the output of the Multiplus-II. Loads connected on the output will need more current that the Ac-in can provide (15amp line at the input). So I want to use the battery only to power the output when power outage and the AC-in would only be used to charge the battery (charger function) No pass-through.

Is this possible ?