Multiplus II power control

Update on my problem: I just watched a utube, that the OUT AC 2 can be programmed to operate when the battery gets to a nominated voltage and turn off when the low voltage is reached. AC In is not required to have this function work. Is anyone using this OUT AC2 function in this way? It does appear misleading that Victron says The second output is live only when AC is available on the input of the MultiPlus Any have a comment of this ? Thanks