How to check for "autopoweroff" option on a non-active profile?
According to the manual pmset -g custom displays "custom settings for all power sources". It seems those "custom settings" are in fact all settings as displayed by pmset -g for current profile:

# pmset -g custom
Battery Power:
 lidwake              1
 autopoweroff         0
 autopoweroffdelay    14400
 standbydelay         10800
 standby              1
 ttyskeepawake        1
 hibernatemode        3
 powernap             0
 gpuswitch            2
 hibernatefile        /var/vm/sleepimage
 displaysleep         2
 sleep                1
 acwake               0
 halfdim              1
 lessbright           1
 disksleep            10
AC Power:
 lidwake              1
 autopoweroff         0
 autopoweroffdelay    14400
 standbydelay         10800
 standby              1
 ttyskeepawake        1
 hibernatemode        3
 powernap             1
 gpuswitch            2
 hibernatefile        /var/vm/sleepimage
 womp                 0
 displaysleep         10
 networkoversleep     0
 sleep                0
 acwake               0
 halfdim              1
 disksleep            10




Alternatively the values can be checked by directly reading from /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist

# cat /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"&gt;
&lt;plist version="1.0"&gt;
&lt;dict&gt;
    &lt;key&gt;ActivePowerProfiles&lt;/key&gt;
    &lt;dict&gt;
        &lt;key&gt;AC Power&lt;/key&gt;
        &lt;integer&gt;-1&lt;/integer&gt;
        &lt;key&gt;Battery Power&lt;/key&gt;
        &lt;integer&gt;-1&lt;/integer&gt;
    &lt;/dict&gt;
    &lt;key&gt;Custom Profile&lt;/key&gt;
    &lt;dict&gt;
        &lt;key&gt;AC Power&lt;/key&gt;
        &lt;dict&gt;
            &lt;key&gt;AutoPowerOff Delay&lt;/key&gt;
            &lt;integer&gt;14400&lt;/integer&gt;
            &lt;key&gt;AutoPowerOff Enabled&lt;/key&gt;
            &lt;integer&gt;0&lt;/integer&gt;
            &lt;key&gt;DarkWakeBackgroundTasks&lt;/key&gt;
            &lt;true/&gt;
            &lt;key&gt;Disk Sleep Timer&lt;/key&gt;
            &lt;integer&gt;10&lt;/integer&gt;
            &lt;key&gt;Display Sleep Timer&lt;/key&gt;
            &lt;integer&gt;10&lt;/integer&gt;
            &lt;key&gt;Display Sleep Uses Dim&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;GPUSwitch&lt;/key&gt;
            &lt;integer&gt;2&lt;/integer&gt;
            &lt;key&gt;Hibernate File&lt;/key&gt;
            &lt;string&gt;/var/vm/sleepimage&lt;/string&gt;
            &lt;key&gt;Hibernate Mode&lt;/key&gt;
            &lt;integer&gt;3&lt;/integer&gt;
            &lt;key&gt;PrioritizeNetworkReachabilityOverSleep&lt;/key&gt;
            &lt;integer&gt;0&lt;/integer&gt;
            &lt;key&gt;Standby Delay&lt;/key&gt;
            &lt;integer&gt;10800&lt;/integer&gt;
            &lt;key&gt;Standby Enabled&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;System Sleep Timer&lt;/key&gt;
            &lt;integer&gt;0&lt;/integer&gt;
            &lt;key&gt;TTYSPreventSleep&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;Wake On AC Change&lt;/key&gt;
            &lt;integer&gt;0&lt;/integer&gt;
            &lt;key&gt;Wake On Clamshell Open&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;Wake On LAN&lt;/key&gt;
            &lt;integer&gt;0&lt;/integer&gt;
        &lt;/dict&gt;
        &lt;key&gt;Battery Power&lt;/key&gt;
        &lt;dict&gt;
            &lt;key&gt;AutoPowerOff Delay&lt;/key&gt;
            &lt;integer&gt;14400&lt;/integer&gt;
            &lt;key&gt;AutoPowerOff Enabled&lt;/key&gt;
            &lt;integer&gt;0&lt;/integer&gt;
            &lt;key&gt;DarkWakeBackgroundTasks&lt;/key&gt;
            &lt;false/&gt;
            &lt;key&gt;Disk Sleep Timer&lt;/key&gt;
            &lt;integer&gt;10&lt;/integer&gt;
            &lt;key&gt;Display Sleep Timer&lt;/key&gt;
            &lt;integer&gt;2&lt;/integer&gt;
            &lt;key&gt;Display Sleep Uses Dim&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;GPUSwitch&lt;/key&gt;
            &lt;integer&gt;2&lt;/integer&gt;
            &lt;key&gt;Hibernate File&lt;/key&gt;
            &lt;string&gt;/var/vm/sleepimage&lt;/string&gt;
            &lt;key&gt;Hibernate Mode&lt;/key&gt;
            &lt;integer&gt;3&lt;/integer&gt;
            &lt;key&gt;ReduceBrightness&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;Standby Delay&lt;/key&gt;
            &lt;integer&gt;10800&lt;/integer&gt;
            &lt;key&gt;Standby Enabled&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;System Sleep Timer&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;TTYSPreventSleep&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
            &lt;key&gt;Wake On AC Change&lt;/key&gt;
            &lt;integer&gt;0&lt;/integer&gt;
            &lt;key&gt;Wake On Clamshell Open&lt;/key&gt;
            &lt;integer&gt;1&lt;/integer&gt;
        &lt;/dict&gt;
    &lt;/dict&gt;
    &lt;key&gt;SystemPowerSettings&lt;/key&gt;
    &lt;dict&gt;
        &lt;key&gt;DestroyFVKeyOnStandby&lt;/key&gt;
        &lt;true/&gt;
    &lt;/dict&gt;
&lt;/dict&gt;
&lt;/plist&gt;