Added a slightly more proper solution for this to 1.0.79a - enums from fnames are now exposed automatically, and if you need something that doesn’t get picked up out of box, you can now do things like
live_enum_add("flexpanel_wrap", {
no_wrap: flexpanel_wrap.no_wrap,
wrap: flexpanel_wrap.wrap,
reverse: flexpanel_wrap.reverse,
});