I would like to be able to see facing coords (coordinates that show which direction you're facing, ranging from -180 to 180). In the screenshots of the mod it seems to be there next to the direction (east, west). But I can't find any setting to enable it. This would be very useful for parkour as you need to line yourself up in a certain direction.

Yeah, the preview of the mod is really outdated and I haven't been able to update it yet. That feature was deprecated a while ago, but I plan on adding it back on the next update.