Alarm Setting - F/O-PRS Option

[Apsco17]

When scrolling through the PDF soft key options, on the same "page" as the PDF Set Menu option, there is an Alarm selection under the 4th soft key from the left. It has two options:

"All" or "F/O-PRS". What is "F/O-PRS" used for and how does it differ from "All"? I've searched the install and pilot manuals and can't find any reference to this options.

Thanks,

Todd

[GRT_Jeff]

We had some customers who wanted to manually limit what alarms are enabled during special flight operations. When this button is set to F/O-PRS, then only Oil Pressure and Fuel Pressure alarms are enabled and all other alarms are disabled.