Just curious: would it be possible for you to serialize the Loop setting so it's persistent across launches ? I hate having to right-click & toggle it On everytime.

Please consider it, because that is how I intended it to function —that's why I said "make it a Checkbox option in Core Settings or Explorer Panel" —I'am fine /w it as it is (in Popup Menu), but I'd just like it to remember the setting (should stick for the next launch automatically) ! Thank you !

[Workaround]: I was able to emulate setting of the Loop to PlayAudio via a User-Defined Command ("AR") MultiScript set on AutoRun=AR CommandLine parameter at Startup —but I would still like this implemented (the persistent Loop setting) in a future release please::
// Set Left Tab Group to 100% width
MC.RunCmd ID="Core.1205";
// Emulate enabling Loop mode by playing a dummy file with LOOP=1
MC.PlayAudio FILE=" " DURATION=0 LOOP=1;
// Immediately stop playback to leave Loop enabled
MC.StopAudio;