I think you can already switch to different views like first person. Don’t know exactly the key to change the view...but maybe someone else could check this. And about “combat, communication and inventory statistics” I think we would need some more info to tell if there is already something you seek or not but maybe the /stats command (generating a log-file at C:\Users\USERNAME\AppData\Roaming\Portalarium\Shroud of the Avatar\ChatLogs\) could be what you are requesting.
V You can also use /visible to switch your character visible / unvisible to yourself. Umuris SotA Hud maybe https://www.shroudoftheavatar.com/f...ible-stats-and-more-now-with-dps-meter.54410/
You use the "v" key to toggle camera view https://www.shroudoftheavatar.com/forum/index.php?threads/quick-reference-guide.24359/
To take this a step further, the "/datafolder" command in chat will open up a window do the directory, if you're already in-game.